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Class   507EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY
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This Class 507 is considered to be an integral part of Class 252 (see the Class 252 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 252.
 [List of Pre Grant Publications for class 507 subclass 90][List of Patents for class 507 subclass 90]90 PREVENTING CONTAMINANT DEPOSITS IN PETROLEUM OIL CONDUITS
[List of Pre Grant Publications for class 507 subclass 100][List of Patents for class 507 subclass 100]100 EARTH BORING
 [List of Pre Grant Publications for class 507 subclass 101][List of Patents for class 507 subclass 101]101 Subclass 101 indent level is 1 Contains enzyme or living microorganism
 [List of Pre Grant Publications for class 507 subclass 102][List of Patents for class 507 subclass 102]102 Subclass 102 indent level is 1 Contains intended gaseous phase at entry into wellbore
[List of Pre Grant Publications for class 507 subclass 103][List of Patents for class 507 subclass 103]103 Subclass 103 indent level is 1 Contains organic component
 [List of Pre Grant Publications for class 507 subclass 104][List of Patents for class 507 subclass 104]104 Subclass 104 indent level is 2 Organic component is cellular or fibrous material derived from plant or animal source (e.g., wood, nutshell, paper, leather, cotton, etc.)
 [List of Pre Grant Publications for class 507 subclass 105][List of Patents for class 507 subclass 105]105 Subclass 105 indent level is 2 Organic component contains fluorine bonded directly to carbon
[List of Pre Grant Publications for class 507 subclass 106][List of Patents for class 507 subclass 106]106 Subclass 106 indent level is 2 Organic component is lignin or humate or derivative thereof (e.g., tannin, quebracho extract, etc.)
[List of Pre Grant Publications for class 507 subclass 110][List of Patents for class 507 subclass 110]110 Subclass 110 indent level is 2 Organic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, xanthan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons
[List of Pre Grant Publications for class 507 subclass 117][List of Patents for class 507 subclass 117]117 Subclass 117 indent level is 2 Organic component is solid synthetic resin
 [List of Pre Grant Publications for class 507 subclass 126][List of Patents for class 507 subclass 126]126 Subclass 126 indent level is 2 Organic component is asphalt or a component or derivative thereof
 [List of Pre Grant Publications for class 507 subclass 127][List of Patents for class 507 subclass 127]127 Subclass 127 indent level is 2 Organic component contains silicon attached directly or indirectly to carbon by nonionic bonding
 [List of Pre Grant Publications for class 507 subclass 128][List of Patents for class 507 subclass 128]128 Subclass 128 indent level is 2 Organic component contains phosphorous attached directly or indirectly to carbon by nonionic bonding
[List of Pre Grant Publications for class 507 subclass 129][List of Patents for class 507 subclass 129]129 Subclass 129 indent level is 2 Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding
[List of Pre Grant Publications for class 507 subclass 134][List of Patents for class 507 subclass 134]134 Subclass 134 indent level is 2 Organic component contains sulfur attached directly or indirectly to carbon by nonionic bonding
 [List of Pre Grant Publications for class 507 subclass 136][List of Patents for class 507 subclass 136]136 Subclass 136 indent level is 2 Organic component contains ether linkage (e.g., PEG ether, etc.)
 [List of Pre Grant Publications for class 507 subclass 137][List of Patents for class 507 subclass 137]137 Subclass 137 indent level is 2 Organic component contains a carbocyclic group (e.g., cyclic alkyl, aromatic, tall oil, etc.)
 [List of Pre Grant Publications for class 507 subclass 138][List of Patents for class 507 subclass 138]138 Subclass 138 indent level is 2 Organic component is a fat, fatty alcohol, fatty oil, ester-type wax, fatty still residue, or higher fatty acid or salt thereof
 [List of Pre Grant Publications for class 507 subclass 139][List of Patents for class 507 subclass 139]139 Subclass 139 indent level is 2 Organic component contains an alcohol group
[List of Pre Grant Publications for class 507 subclass 140][List of Patents for class 507 subclass 140]140 Subclass 140 indent level is 1 Contains inorganic component other than water or clay
[List of Pre Grant Publications for class 507 subclass 200][List of Patents for class 507 subclass 200]200 WELL TREATING
 [List of Pre Grant Publications for class 507 subclass 201][List of Patents for class 507 subclass 201]201 Subclass 201 indent level is 1 Contains enzyme or living micro-organism
 [List of Pre Grant Publications for class 507 subclass 202][List of Patents for class 507 subclass 202]202 Subclass 202 indent level is 1 Contains intended gaseous phase at entry into wellbore
[List of Pre Grant Publications for class 507 subclass 203][List of Patents for class 507 subclass 203]203 Subclass 203 indent level is 1 Contains organic component
 [List of Pre Grant Publications for class 507 subclass 204][List of Patents for class 507 subclass 204]204 Subclass 204 indent level is 2 Organic component is cellular or fibrous material derived from plant or animal source (e.g., wood, nutshell, paper, leather, cotton, etc.)
 [List of Pre Grant Publications for class 507 subclass 205][List of Patents for class 507 subclass 205]205 Subclass 205 indent level is 2 Organic component contains fluorine bonded directly to carbon
[List of Pre Grant Publications for class 507 subclass 206][List of Patents for class 507 subclass 206]206 Subclass 206 indent level is 2 Organic component is lignin or humate or derivative thereof (e.g., tannin, quebracho extract, etc.)
[List of Pre Grant Publications for class 507 subclass 209][List of Patents for class 507 subclass 209]209 Subclass 209 indent level is 2 Organic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons
[List of Pre Grant Publications for class 507 subclass 219][List of Patents for class 507 subclass 219]219 Subclass 219 indent level is 2 Organic component is solid synthetic resin
 [List of Pre Grant Publications for class 507 subclass 232][List of Patents for class 507 subclass 232]232 Subclass 232 indent level is 2 Organic component is asphalt or a component or derivative thereof
[List of Pre Grant Publications for class 507 subclass 233][List of Patents for class 507 subclass 233]233 Subclass 233 indent level is 2 Organic component contains silicon attached directly or indirectly to carbon by nonionic bonding
[List of Pre Grant Publications for class 507 subclass 235][List of Patents for class 507 subclass 235]235 Subclass 235 indent level is 2 Organic component contains phosphorus attached directly or indirectly to carbon by nonionic bonding
[List of Pre Grant Publications for class 507 subclass 239][List of Patents for class 507 subclass 239]239 Subclass 239 indent level is 2 Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding
[List of Pre Grant Publications for class 507 subclass 252][List of Patents for class 507 subclass 252]252 Subclass 252 indent level is 2 Organic component contains sulfur attached directly or indirectly to carbon by nonionic bonding
 [List of Pre Grant Publications for class 507 subclass 260][List of Patents for class 507 subclass 260]260 Subclass 260 indent level is 2 Organic component is polycarboxylic acid, ester, or salt thereof
[List of Pre Grant Publications for class 507 subclass 261][List of Patents for class 507 subclass 261]261 Subclass 261 indent level is 2 Organic component contains ether linkage (e.g., PEG ether, etc.)
[List of Pre Grant Publications for class 507 subclass 263][List of Patents for class 507 subclass 263]263 Subclass 263 indent level is 2 Organic component contains a carbocyclic group (e.g., cycloaliphatic, aromatic ring, tall oil, etc.)
 [List of Pre Grant Publications for class 507 subclass 265][List of Patents for class 507 subclass 265]265 Subclass 265 indent level is 2 Organic component is a fat, fatty alcohol, fatty oil, ester-type wax, fatty still residue, or higher fatty acid or salt thereof
 [List of Pre Grant Publications for class 507 subclass 266][List of Patents for class 507 subclass 266]266 Subclass 266 indent level is 2 Organic component contains an alcohol group
 [List of Pre Grant Publications for class 507 subclass 267][List of Patents for class 507 subclass 267]267 Subclass 267 indent level is 2 Organic component contains carboxylic acid, ester, or salt thereof
 [List of Pre Grant Publications for class 507 subclass 268][List of Patents for class 507 subclass 268]268 Subclass 268 indent level is 2 Organic component contains a carbonyl group (e.g., aldehyde, ketone, etc.)
[List of Pre Grant Publications for class 507 subclass 269][List of Patents for class 507 subclass 269]269 Subclass 269 indent level is 1 Contains inorganic component other than water or clay
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 507 subclass 901][List of Patents for class 507 subclass 901]901 ORGANICALLY MODIFIED INORGANIC SOLID
 [List of Pre Grant Publications for class 507 subclass 902][List of Patents for class 507 subclass 902]902 CONTROLLED RELEASE AGENT
 [List of Pre Grant Publications for class 507 subclass 903][List of Patents for class 507 subclass 903]903 CROSSLINKED RESIN OR POLYMER
 [List of Pre Grant Publications for class 507 subclass 904][List of Patents for class 507 subclass 904]904 PROCESS OF MAKING FLUIDS OR ADDITIVES THEREFOR
 [List of Pre Grant Publications for class 507 subclass 905][List of Patents for class 507 subclass 905]905 NONTOXIC COMPOSITION
 [List of Pre Grant Publications for class 507 subclass 906][List of Patents for class 507 subclass 906]906 SOLID INORGANIC ADDITIVE IN DEFINED PHYSICAL FORM
 [List of Pre Grant Publications for class 507 subclass 907][List of Patents for class 507 subclass 907]907 INDICATING MEANS (E.G., DYE, FLUORESCING AGENT, ETC.)
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 507 subclass 910][List of Patents for class 507 subclass 910]910 EARTH BORING FLUID DEVOID OF DISCRETE AQUEOUS PHASE
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 507 subclass 920][List of Patents for class 507 subclass 920]920 BIOCIDAL
 [List of Pre Grant Publications for class 507 subclass 921][List of Patents for class 507 subclass 921]921 SPECIFIED BREAKER COMPONENT FOR EMULSION OR GEL
[List of Pre Grant Publications for class 507 subclass 922][List of Patents for class 507 subclass 922]922 FRACTURE FLUID
 [List of Pre Grant Publications for class 507 subclass 925][List of Patents for class 507 subclass 925]925 COMPLETION OR WORKOVER FLUID
 [List of Pre Grant Publications for class 507 subclass 926][List of Patents for class 507 subclass 926]926 PACKER FLUID
[List of Pre Grant Publications for class 507 subclass 927][List of Patents for class 507 subclass 927]927 WELL CLEANING FLUID
[List of Pre Grant Publications for class 507 subclass 933][List of Patents for class 507 subclass 933]933 ACIDIZING OR FORMATION DESTROYING
[List of Pre Grant Publications for class 507 subclass 935][List of Patents for class 507 subclass 935]935 ENHANCED OIL RECOVERY
 [List of Pre Grant Publications for class 507 subclass 939][List of Patents for class 507 subclass 939]939 CORROSION INHIBITOR
 [List of Pre Grant Publications for class 507 subclass 940][List of Patents for class 507 subclass 940]940 FREEING STUCK OBJECT FROM WELLBORE
 
FOREIGN ART COLLECTIONS
 
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