PATENTS   
Patents > Guidance, Tools, and Manuals > Classification > Class Schedule
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP  
You are viewing a USPC Schedule.
Class   48GAS: HEATING AND ILLUMINATING
Click here for a printable version of this file
  Turn Outline  
     Expand/Contract Processing Please Wait
     ACETYLENE
 [List of Pre Grant Publications for class 48 subclass 1][List of Patents for class 48 subclass 1]1 Subclass 1 indent level is 1 Generation and liquefaction
 [List of Pre Grant Publications for class 48 subclass 2][List of Patents for class 48 subclass 2]2 Subclass 2 indent level is 1 Generator and holder
[List of Pre Grant Publications for class 48 subclass 3R][List of Patents for class 48 subclass 3R]  3R Subclass 3R indent level is 1 Generator and mixer
 [List of Pre Grant Publications for class 48 subclass 3A][List of Patents for class 48 subclass 3A]3A Subclass 3A indent level is 2 Special features
     Subclass  indent level is 1 Generators
[List of Pre Grant Publications for class 48 subclass 4][List of Patents for class 48 subclass 4]4 Subclass 4 indent level is 2 Water feed
[List of Pre Grant Publications for class 48 subclass 38][List of Patents for class 48 subclass 38]38 Subclass 38 indent level is 2 Carbide feed
 [List of Pre Grant Publications for class 48 subclass 58][List of Patents for class 48 subclass 58]58 Subclass 58 indent level is 2 Valves, gas and water feed
 [List of Pre Grant Publications for class 48 subclass 56][List of Patents for class 48 subclass 56]56 Subclass 56 indent level is 2 Automatic safety escape
 [List of Pre Grant Publications for class 48 subclass 57][List of Patents for class 48 subclass 57]57 Subclass 57 indent level is 2 Sludge remover
[List of Pre Grant Publications for class 48 subclass 59][List of Patents for class 48 subclass 59]59 Subclass 59 indent level is 1 Carbide cartridges
 [List of Pre Grant Publications for class 48 subclass 60][List of Patents for class 48 subclass 60]60 Subclass 60 indent level is 2 Conglomerate
[List of Pre Grant Publications for class 48 subclass 61][List of Patents for class 48 subclass 61]61 GENERATORS
     Subclass  indent level is 1 Hydrogen
[List of Pre Grant Publications for class 48 subclass 116][List of Patents for class 48 subclass 116]116 Subclass 116 indent level is 2 Carburetor
[List of Pre Grant Publications for class 48 subclass 62R][List of Patents for class 48 subclass 62R]  62R Subclass 62R indent level is 1 Cupola
 [List of Pre Grant Publications for class 48 subclass 71][List of Patents for class 48 subclass 71]71 Subclass 71 indent level is 2 Coal, oil and water
 [List of Pre Grant Publications for class 48 subclass 72][List of Patents for class 48 subclass 72]72 Subclass 72 indent level is 2 Coal and oil
 [List of Pre Grant Publications for class 48 subclass 73][List of Patents for class 48 subclass 73]73 Subclass 73 indent level is 2 Coal and water
 [List of Pre Grant Publications for class 48 subclass 76][List of Patents for class 48 subclass 76]76 Subclass 76 indent level is 2 Producers
 [List of Pre Grant Publications for class 48 subclass 77][List of Patents for class 48 subclass 77]77 Subclass 77 indent level is 2 Coal
[List of Pre Grant Publications for class 48 subclass 78][List of Patents for class 48 subclass 78]78 Subclass 78 indent level is 2 Water
 [List of Pre Grant Publications for class 48 subclass 85][List of Patents for class 48 subclass 85]85 Subclass 85 indent level is 2 Carbon monoxide
 [List of Pre Grant Publications for class 48 subclass 75][List of Patents for class 48 subclass 75]75 Subclass 75 indent level is 2 Oil and steam injected
[List of Pre Grant Publications for class 48 subclass 63][List of Patents for class 48 subclass 63]63 Subclass 63 indent level is 2 Air and steam injected
 [List of Pre Grant Publications for class 48 subclass 65][List of Patents for class 48 subclass 65]65 Subclass 65 indent level is 2 Electric
 [List of Pre Grant Publications for class 48 subclass 66][List of Patents for class 48 subclass 66]66 Subclass 66 indent level is 2 Rotary bottom
[List of Pre Grant Publications for class 48 subclass 67][List of Patents for class 48 subclass 67]67 Subclass 67 indent level is 2 Water jacket
 [List of Pre Grant Publications for class 48 subclass 69][List of Patents for class 48 subclass 69]69 Subclass 69 indent level is 2 Water-seal pit
 [List of Pre Grant Publications for class 48 subclass 74][List of Patents for class 48 subclass 74]74 Subclass 74 indent level is 2 Refractory filling
     Subclass  indent level is 2 Fuel agitating
[List of Pre Grant Publications for class 48 subclass 86R][List of Patents for class 48 subclass 86R]  86R Subclass 86R indent level is 2 Chargers
 [List of Pre Grant Publications for class 48 subclass 87][List of Patents for class 48 subclass 87]87 Subclass 87 indent level is 2 Accessories
 [List of Pre Grant Publications for class 48 subclass 62A][List of Patents for class 48 subclass 62A]62A Subclass 62A indent level is 2 Partial combustion carburetor
[List of Pre Grant Publications for class 48 subclass 89][List of Patents for class 48 subclass 89]89 Subclass 89 indent level is 1 Retort
 [List of Pre Grant Publications for class 48 subclass 98][List of Patents for class 48 subclass 98]98 Subclass 98 indent level is 2 Coal, oil and water
 [List of Pre Grant Publications for class 48 subclass 99][List of Patents for class 48 subclass 99]99 Subclass 99 indent level is 2 Coal and water
 [List of Pre Grant Publications for class 48 subclass 100][List of Patents for class 48 subclass 100]100 Subclass 100 indent level is 2 Coal and oil
 [List of Pre Grant Publications for class 48 subclass 101][List of Patents for class 48 subclass 101]101 Subclass 101 indent level is 2 Coal
[List of Pre Grant Publications for class 48 subclass 102R][List of Patents for class 48 subclass 102R]  102R Subclass 102R indent level is 2 Oil
[List of Pre Grant Publications for class 48 subclass 108][List of Patents for class 48 subclass 108]108 Subclass 108 indent level is 2 Water
[List of Pre Grant Publications for class 48 subclass 111][List of Patents for class 48 subclass 111]111 Subclass 111 indent level is 2 Wood
 [List of Pre Grant Publications for class 48 subclass 92][List of Patents for class 48 subclass 92]92 Subclass 92 indent level is 2 Metal bath
 [List of Pre Grant Publications for class 48 subclass 93][List of Patents for class 48 subclass 93]93 Subclass 93 indent level is 2 Oil and gas injected
[List of Pre Grant Publications for class 48 subclass 94][List of Patents for class 48 subclass 94]94 Subclass 94 indent level is 2 Oil and steam injected
 [List of Pre Grant Publications for class 48 subclass 90][List of Patents for class 48 subclass 90]90 Subclass 90 indent level is 2 Domestic plants
 [List of Pre Grant Publications for class 48 subclass 113][List of Patents for class 48 subclass 113]113 Subclass 113 indent level is 2 Furnaces
 [List of Pre Grant Publications for class 48 subclass 118.5][List of Patents for class 48 subclass 118.5]118.5 Subclass 118.5 indent level is 1 Portable
[List of Pre Grant Publications for class 48 subclass 119][List of Patents for class 48 subclass 119]119 RETORTS
 [List of Pre Grant Publications for class 48 subclass 120][List of Patents for class 48 subclass 120]120 Subclass 120 indent level is 1 Compounds
 [List of Pre Grant Publications for class 48 subclass 122][List of Patents for class 48 subclass 122]122 Subclass 122 indent level is 1 Inclined
 [List of Pre Grant Publications for class 48 subclass 123][List of Patents for class 48 subclass 123]123 Subclass 123 indent level is 1 Vertical
 [List of Pre Grant Publications for class 48 subclass 124][List of Patents for class 48 subclass 124]124 Subclass 124 indent level is 1 Lids
 [List of Pre Grant Publications for class 48 subclass 126][List of Patents for class 48 subclass 126]126 Subclass 126 indent level is 1 Attachments
 [List of Pre Grant Publications for class 48 subclass 127.1][List of Patents for class 48 subclass 127.1]127.1 CONVERSION OF HYDROCARBON GAS AND BLENDING OF PRODUCT WITH FURTHER HYDROCARBON GAS, PROCESS
[List of Pre Grant Publications for class 48 subclass 127.3][List of Patents for class 48 subclass 127.3]127.3 METHANE (NATURAL GAS) -CONTAINING PRODUCT, OR TREATMENT OR RECOVERY PROCESS
[List of Pre Grant Publications for class 48 subclass 127.5][List of Patents for class 48 subclass 127.5]127.5 Subclass 127.5 indent level is 1 Process including chemical reaction
 [List of Pre Grant Publications for class 48 subclass 127.7][List of Patents for class 48 subclass 127.7]127.7 Subclass 127.7 indent level is 2 Catalytic
 [List of Pre Grant Publications for class 48 subclass 127.9][List of Patents for class 48 subclass 127.9]127.9 APPARATUS FOR CONVERTING OR TREATING HYDROCARBON GAS
[List of Pre Grant Publications for class 48 subclass 144][List of Patents for class 48 subclass 144]144 CARBURETORS
 [List of Pre Grant Publications for class 48 subclass 160][List of Patents for class 48 subclass 160]160 Subclass 160 indent level is 1 Gravity
 [List of Pre Grant Publications for class 48 subclass 128][List of Patents for class 48 subclass 128]128 PURIFIERS
 [List of Pre Grant Publications for class 48 subclass 170][List of Patents for class 48 subclass 170]170 CENTER AND BY-PASS VALVES
 [List of Pre Grant Publications for class 48 subclass 173][List of Patents for class 48 subclass 173]173 EXHAUSTERS
[List of Pre Grant Publications for class 48 subclass 174][List of Patents for class 48 subclass 174]174 HOLDERS
 [List of Pre Grant Publications for class 48 subclass 175][List of Patents for class 48 subclass 175]175 Subclass 175 indent level is 1 High-pressure safety escape
[List of Pre Grant Publications for class 48 subclass 176][List of Patents for class 48 subclass 176]176 Subclass 176 indent level is 1 Bell and tank
 [List of Pre Grant Publications for class 48 subclass 177][List of Patents for class 48 subclass 177]177 Subclass 177 indent level is 2 Sectional bell
 [List of Pre Grant Publications for class 48 subclass 178][List of Patents for class 48 subclass 178]178 Subclass 178 indent level is 1 Collapsible
 [List of Pre Grant Publications for class 48 subclass 179][List of Patents for class 48 subclass 179]179 Subclass 179 indent level is 1 Tank
[List of Pre Grant Publications for class 48 subclass 180.1][List of Patents for class 48 subclass 180.1]180.1 MIXERS
[List of Pre Grant Publications for class 48 subclass 181][List of Patents for class 48 subclass 181]181 Subclass 181 indent level is 1 Bell and tank
 [List of Pre Grant Publications for class 48 subclass 182][List of Patents for class 48 subclass 182]182 Subclass 182 indent level is 2 Anterior
 [List of Pre Grant Publications for class 48 subclass 183][List of Patents for class 48 subclass 183]183 Subclass 183 indent level is 2 Posterior
 [List of Pre Grant Publications for class 48 subclass 184][List of Patents for class 48 subclass 184]184 Subclass 184 indent level is 1 Diaphragm
 [List of Pre Grant Publications for class 48 subclass 185][List of Patents for class 48 subclass 185]185 Subclass 185 indent level is 1 Gravity
 [List of Pre Grant Publications for class 48 subclass 186][List of Patents for class 48 subclass 186]186 Subclass 186 indent level is 1 Pump
[List of Pre Grant Publications for class 48 subclass 187][List of Patents for class 48 subclass 187]187 Subclass 187 indent level is 1 Rotary drum
 [List of Pre Grant Publications for class 48 subclass 188][List of Patents for class 48 subclass 188]188 Subclass 188 indent level is 2 Anterior
 [List of Pre Grant Publications for class 48 subclass 189][List of Patents for class 48 subclass 189]189 Subclass 189 indent level is 2 Posterior
 [List of Pre Grant Publications for class 48 subclass 189.1][List of Patents for class 48 subclass 189.1]189.1 Subclass 189.1 indent level is 1 Three or more different fluids entering apparatus
 [List of Pre Grant Publications for class 48 subclass 189.2][List of Patents for class 48 subclass 189.2]189.2 Subclass 189.2 indent level is 1 With heating means
 [List of Pre Grant Publications for class 48 subclass 189.3][List of Patents for class 48 subclass 189.3]189.3 Subclass 189.3 indent level is 1 Auxilary air inlet
[List of Pre Grant Publications for class 48 subclass 189.4][List of Patents for class 48 subclass 189.4]189.4 Subclass 189.4 indent level is 1 Mixer in flow path of existing mixture
 [List of Pre Grant Publications for class 48 subclass 189.5][List of Patents for class 48 subclass 189.5]189.5 Subclass 189.5 indent level is 2 Rotating mixer
 [List of Pre Grant Publications for class 48 subclass 189.6][List of Patents for class 48 subclass 189.6]189.6 Subclass 189.6 indent level is 2 Includes element made of engaged strands or fibers, e.g., screen, fabric, etc.
[List of Pre Grant Publications for class 48 subclass 190][List of Patents for class 48 subclass 190]190 DISTRIBUTION
 [List of Pre Grant Publications for class 48 subclass 191][List of Patents for class 48 subclass 191]191 Subclass 191 indent level is 1 Regulating pressure
 [List of Pre Grant Publications for class 48 subclass 192][List of Patents for class 48 subclass 192]192 Subclass 192 indent level is 1 Safety devices
[List of Pre Grant Publications for class 48 subclass 193][List of Patents for class 48 subclass 193]193 Subclass 193 indent level is 1 Leakage
 [List of Pre Grant Publications for class 48 subclass 194][List of Patents for class 48 subclass 194]194 Subclass 194 indent level is 2 Preventing
 [List of Pre Grant Publications for class 48 subclass 195][List of Patents for class 48 subclass 195]195 Subclass 195 indent level is 2 Odorizers
[List of Pre Grant Publications for class 48 subclass 197R][List of Patents for class 48 subclass 197R]  197R PROCESSES
[List of Pre Grant Publications for class 48 subclass 198.1][List of Patents for class 48 subclass 198.1]198.1 Subclass 198.1 indent level is 1 Manufacture from methane (natural gas)
 [List of Pre Grant Publications for class 48 subclass 198.2][List of Patents for class 48 subclass 198.2]198.2 Subclass 198.2 indent level is 2 Employing carbon particles, porous barrier element or molten material
 [List of Pre Grant Publications for class 48 subclass 198.3][List of Patents for class 48 subclass 198.3]198.3 Subclass 198.3 indent level is 2 With specified treatment of converted product, e.g., purification, particular cooling, testing, etc.
 [List of Pre Grant Publications for class 48 subclass 198.5][List of Patents for class 48 subclass 198.5]198.5 Subclass 198.5 indent level is 2 Employing oxygen donor particles or carbidable metal particles
 [List of Pre Grant Publications for class 48 subclass 198.6][List of Patents for class 48 subclass 198.6]198.6 Subclass 198.6 indent level is 2 Specified direction of gas travel through particle mass, e.g., fluidization, flow reversal, etc.
 [List of Pre Grant Publications for class 48 subclass 198.7][List of Patents for class 48 subclass 198.7]198.7 Subclass 198.7 indent level is 2 Employing catalytic particles
 [List of Pre Grant Publications for class 48 subclass 198.8][List of Patents for class 48 subclass 198.8]198.8 Subclass 198.8 indent level is 2 With specified reactant velocity, angle of entry to reactor or mechanical energy production, e.g., use of internal combustion engine, etc.
     Subclass  indent level is 1 Hydrogen
[List of Pre Grant Publications for class 48 subclass 199R][List of Patents for class 48 subclass 199R]  199R Subclass 199R indent level is 2 Carbureting
 [List of Pre Grant Publications for class 48 subclass 200][List of Patents for class 48 subclass 200]200 Subclass 200 indent level is 1 Coal, oil and water
 [List of Pre Grant Publications for class 48 subclass 201][List of Patents for class 48 subclass 201]201 Subclass 201 indent level is 1 Coal and oil
 [List of Pre Grant Publications for class 48 subclass 202][List of Patents for class 48 subclass 202]202 Subclass 202 indent level is 1 Coal and water
 [List of Pre Grant Publications for class 48 subclass 203][List of Patents for class 48 subclass 203]203 Subclass 203 indent level is 1 Producer
[List of Pre Grant Publications for class 48 subclass 204][List of Patents for class 48 subclass 204]204 Subclass 204 indent level is 1 Water
 [List of Pre Grant Publications for class 48 subclass 205][List of Patents for class 48 subclass 205]205 Subclass 205 indent level is 2 Carbureting
 [List of Pre Grant Publications for class 48 subclass 206][List of Patents for class 48 subclass 206]206 Subclass 206 indent level is 2 Continuous
 [List of Pre Grant Publications for class 48 subclass 207][List of Patents for class 48 subclass 207]207 Subclass 207 indent level is 2 Down run
 [List of Pre Grant Publications for class 48 subclass 208][List of Patents for class 48 subclass 208]208 Subclass 208 indent level is 2 Up-and-down run
 [List of Pre Grant Publications for class 48 subclass 209][List of Patents for class 48 subclass 209]209 Subclass 209 indent level is 1 Wood
 [List of Pre Grant Publications for class 48 subclass 210][List of Patents for class 48 subclass 210]210 Subclass 210 indent level is 1 Coal
[List of Pre Grant Publications for class 48 subclass 211][List of Patents for class 48 subclass 211]211 Subclass 211 indent level is 1 Oil
 [List of Pre Grant Publications for class 48 subclass 212][List of Patents for class 48 subclass 212]212 Subclass 212 indent level is 2 Air injected
 [List of Pre Grant Publications for class 48 subclass 213][List of Patents for class 48 subclass 213]213 Subclass 213 indent level is 2 Gas injected
[List of Pre Grant Publications for class 48 subclass 214R][List of Patents for class 48 subclass 214R]  214R Subclass 214R indent level is 1 Oil and steam injected
 [List of Pre Grant Publications for class 48 subclass 215][List of Patents for class 48 subclass 215]215 Subclass 215 indent level is 2 Air
 [List of Pre Grant Publications for class 48 subclass 214A][List of Patents for class 48 subclass 214A]214A Subclass 214A indent level is 2 Catalytic processes
[List of Pre Grant Publications for class 48 subclass 216][List of Patents for class 48 subclass 216]216 Subclass 216 indent level is 1 Acetylene
 [List of Pre Grant Publications for class 48 subclass 217][List of Patents for class 48 subclass 217]217 Subclass 217 indent level is 2 Slow
 [List of Pre Grant Publications for class 48 subclass 219][List of Patents for class 48 subclass 219]219 Subclass 219 indent level is 1 Carbureting
 [List of Pre Grant Publications for class 48 subclass 197FM][List of Patents for class 48 subclass 197FM]197FM Subclass 197FM indent level is 1 Fuel mixtures
 [List of Pre Grant Publications for class 48 subclass 197A][List of Patents for class 48 subclass 197A]197A Subclass 197A indent level is 1 Sewage treatment
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS
 
DIGESTS
 
 [List of Pre Grant Publications for class 48 subclass DIG1][List of Patents for class 48 subclass DIG1] DIG1 RECIRCULATION OF GASES PRODUCED TO LOWER PART OF FUEL BED
 [List of Pre Grant Publications for class 48 subclass DIG2][List of Patents for class 48 subclass DIG2] DIG2 SLAGGING PRODUCER
 [List of Pre Grant Publications for class 48 subclass DIG3][List of Patents for class 48 subclass DIG3] DIG3 HIGH PRESSURE
 [List of Pre Grant Publications for class 48 subclass DIG4][List of Patents for class 48 subclass DIG4] DIG4 POWDERED FUEL INJECTION
 [List of Pre Grant Publications for class 48 subclass DIG5][List of Patents for class 48 subclass DIG5] DIG5 DIFFUSION MEMBRANE FOR GAS REACTION OR SEPARATION
 [List of Pre Grant Publications for class 48 subclass DIG6][List of Patents for class 48 subclass DIG6] DIG6 UNDERGROUND GASIFICATION OF COAL
 [List of Pre Grant Publications for class 48 subclass DIG7][List of Patents for class 48 subclass DIG7] DIG7 SLURRY
 [List of Pre Grant Publications for class 48 subclass DIG8][List of Patents for class 48 subclass DIG8] DIG8 INTERNAL COMBUSTION ENGINE FOR GAS MAKING
 [List of Pre Grant Publications for class 48 subclass DIG9][List of Patents for class 48 subclass DIG9] DIG9 SOLAR GASIFICATION
 [List of Pre Grant Publications for class 48 subclass DIG10][List of Patents for class 48 subclass DIG10] DIG10 COMPUTER RESISTED CONTROL

This page is produced by the Office of Classification Support (Office of Patent Classification) for the Reference Tools Project.

Please send questions and comments to usptoinfo@uspto.gov .

Note: The Patent and Trademark Depository Library Program (PTDLP) administers a nationwide network of public, state and academic libraries designated as Patent and Trademark Depository Libraries authorized by 35 U.S.C. 13 to: Disseminate Patent and Trademark Information Support Diverse Intellectual Property Needs of the Public. PTDL Contact Information

Note: For information/comments on electronic information products, such as purchasing USPTO data, or to discuss system requirements for magnetic tape products, contact:

     Information Products Division -- U.S. Patent and Trademark Office Information Products Division Contact Information
     Or, browse their on-line catalog.

KEY: e Biz=online business system fees=fees forms=formshelp=help laws and regs=laws/regulations definition=definition (glossary)

The Inventors Assistance Center is available to help you on patent matters.Send questions about USPTO programs and services to the USPTO Contact Center (UCC). You can suggest USPTO webpages or material you would like featured on this section by E-mail to the webmaster@uspto.gov. While we cannot promise to accommodate all requests, your suggestions will be considered and may lead to other improvements on the website.


|.HOME | SITE INDEX| SEARCH | eBUSINESS | HELP | PRIVACY POLICY