Skip menu navigation Home > PTMT Listing of Viewable Reports > University Report Table of Contents > University Listing > This Page

U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

U.S. COLLEGES AND UNIVERSITIES-
UTILITY PATENT GRANTS,
CALENDAR YEARS 1969-2005

- this report has been prepared with support from the National Science Foundation -

BREAKOUT BY TECHNOLOGY CLASS -
PATENTS DISTRIBUTED BY CALENDAR YEAR OF PATENT APPLICATION

NUMBER OF UTILITY PATENTS ASSIGNED ANNUALLY
TO U.S. COLLEGES AND UNIVERSITIES RANKED IN THE
TOP 200 BY R&D EXPENDITURES IN FY 2004

- Explanation of Data -

Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period

This Table Displays Patent Counts By Technology Class
For Patents Granted To The Following Top 200 R&D University:

IOWA STATE UNIVERSITY

( count of patent grants, as distributed by calendar year of patent application )
( technology class is determined by the primary patent classification - see 'Explanation of Data' )

Annual patent counts for the university.
Counts of granted patents are either distributed by the year of patent grant
or by the year of patent filing. Multiple assignee names may be associated
with a university.
Class Class Title PRE_1985 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 17 2 3 3 1 4 3 1 2 5 2 3 2 7 5 2 5 2 0 1 0 0 70
532 Organic Compounds (includes Classes 532-570) 23 4 1 2 1 2 1 4 2 4 4 4 3 3 6 1 0 0 1 1 0 0 67
073 Measuring and Testing 22 1 1 1 3 1 4 4 1 1 5 1 0 3 2 2 1 1 0 1 1 0 56
435 Chemistry: Molecular Biology and Microbiology 1 1 0 1 0 4 1 1 2 2 2 5 3 3 0 3 5 2 2 0 0 0 38
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 0 1 0 0 0 0 0 1 8 13 4 2 1 2 0 0 0 1 0 33
204 Chemistry: Electrical and Wave Energy 2 1 0 0 0 1 1 2 2 1 2 2 2 1 1 0 0 0 1 0 0 0 19
324 Electricity: Measuring and Testing 5 0 0 0 0 6 2 0 1 2 0 0 0 1 1 0 0 0 0 0 0 0 18
148 Metal Treatment 0 0 0 2 0 0 1 2 1 3 1 1 2 3 0 0 0 1 0 0 0 0 17
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 0 0 0 0 1 2 3 0 1 1 0 1 0 0 2 2 2 2 0 0 0 0 17
056 Harvesters 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
250 Radiant Energy 2 0 0 2 0 0 2 1 2 0 2 0 1 1 0 0 1 0 0 0 0 0 14
128 Surgery (includes Class 600) 7 0 1 1 0 0 0 0 0 1 0 3 0 0 0 0 0 0 0 0 0 0 13
210 Liquid Purification or Separation 3 0 0 0 0 1 0 3 0 0 1 0 1 2 0 0 0 1 1 0 0 0 13
356 Optics: Measuring and Testing 5 0 0 0 0 2 0 0 1 1 2 0 0 1 0 0 0 0 1 0 0 0 13
426 Food or Edible Material: Processes, Compositions, and Products 3 0 0 0 1 1 1 1 0 1 0 1 0 0 2 1 0 0 0 0 0 0 12
423 Chemistry of Inorganic Compounds 5 0 0 0 1 1 1 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 11
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 1 0 2 0 0 2 0 1 0 1 1 0 1 0 0 0 0 0 0 0 0 10
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 4 0 0 1 0 0 0 0 0 0 0 0 0 0 2 1 1 0 1 0 0 0 10
436 Chemistry: Analytical and Immunological Testing 3 0 0 0 1 1 0 0 0 0 1 0 0 1 0 2 0 0 0 0 0 0 9
052 Static Structures (e.g., Buildings) 5 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 8
318 Electricity: Motive Power Systems 1 0 0 1 0 0 0 0 0 1 1 0 0 1 1 1 0 1 0 0 0 0 8
044 Fuel and Related Compositions 2 0 0 0 1 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 0 0 7
427 Coating Processes 0 0 0 0 1 0 0 0 0 2 2 0 0 1 0 0 0 1 0 0 0 0 7
434 Education and Demonstration 6 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 7
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 2 0 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 7
119 Animal Husbandry 2 0 0 0 2 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 6
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 5 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 6
438 Semiconductor Device Manufacturing: Process 1 0 0 0 0 0 1 0 0 1 0 1 0 1 0 0 0 0 1 0 0 0 6
460 Crop Threshing or Separating 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
700 DP: Generic Control Systems or Specific Applications (Data Processing) 2 0 0 0 1 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 6
702 DP: Measuring, Calibrating, or Testing (Data Processing) 1 0 1 0 1 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 6
062 Refrigeration 0 0 0 0 0 0 0 0 0 1 1 0 1 1 0 1 0 0 0 0 0 0 5
126 Stoves and Furnaces 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
165 Heat Exchange 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 5
172 Earth Working 3 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 5
252 Compositions 0 1 0 0 1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 5
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 0 0 0 1 0 0 1 1 0 2 0 0 0 0 0 0 0 0 0 5
310 Electrical Generator or Motor Structure 1 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0 0 0 0 0 0 0 5
341 Coded Data Generation or Conversion 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 0 1 0 0 5
359 Optics: Systems and Elements 2 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 5
375 Pulse or Digital Communications 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 5
420 Alloys or Metallic Compositions 0 0 0 0 0 0 1 0 0 0 1 0 3 0 0 0 0 0 0 0 0 0 5
501 Compositions: Ceramic 0 0 0 0 0 1 0 0 0 0 1 0 0 1 1 0 1 0 0 0 0 0 5
504 Plant Protecting and Regulating Compositions 1 0 0 0 0 0 1 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 5
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 2 0 0 0 0 5
034 Drying and Gas or Vapor Contact with Solids 1 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 4
209 Classifying, Separating, and Assorting Solids 1 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
313 Electric Lamp and Discharge Devices 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 4
333 Wave Transmission Lines and Networks 2 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 4
381 Electrical Audio Signal Processing Systems and Devices 2 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 4
414 Material or Article Handling 3 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 4
419 Powder Metallurgy Processes 0 0 0 0 1 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 4
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 0 4
428 Stock Material or Miscellaneous Articles 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 4
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 0 0 0 4
029 Metal Working 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
122 Liquid Heaters and Vaporizers 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
137 Fluid Handling 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
200 Electricity: Circuit Makers and Breakers 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 3
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 3
241 Solid Material Comminution or Disintegration 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 3
343 Communications: Radio Wave Antennas 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 1 0 0 0 0 3
365 Static Information Storage and Retrieval 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 3
372 Coherent Light Generators 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 3
374 Thermal Measuring and Testing 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 3
415 Rotary Kinetic Fluid Motors or Pumps 1 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3
452 Butchering 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3
585 Chemistry of Hydrocarbon Compounds 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
604 Surgery (Medicators and Receptors) 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
606 Surgery (instruments) 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 3
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 3
015 Brushing, Scrubbing, and General Cleaning 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 2
043 Fishing, Trapping, and Vermin Destroying 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2
048 Gas: Heating and Illuminating 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 2
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 2
060 Power Plants 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 2
071 Chemistry: Fertilizers 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
106 Compositions: Coating or Plastic 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 2
177 Weighing Scales 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
222 Dispensing (apparatus and process) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
236 Automatic Temperature and Humidity Regulation 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 2
244 Aeronautics and Astronautics 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
266 Metallurgical Apparatus 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 2
280 Land Vehicles 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
290 Prime-Mover Dynamo Plants 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 2
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
331 Oscillators 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2
340 Communications: Electrical 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
345 Computer Graphics Processing and Selective Visual Display Systems 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 2
360 Dynamic Magnetic Information Storage or Retrieval 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
367 Communications, Electrical: Acoustic Wave Systems and Devices 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2
368 Horology: Time Measuring Systems or Devices 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
396 Photography 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 2
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2
607 Surgery: Light, Thermal, and Electrical Application 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 2
717 DP: Software Development, Installation, and Management (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2
016 Miscellaneous Hardware 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
024 Buckles, Buttons, Clasps, Etc. 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
047 Plant Husbandry 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
055 Gas Separation 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
065 Glass Manufacturing 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
070 Locks 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
083 Cutting 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
095 Gas Separation: Processes 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
099 Foods and Beverages: Apparatus 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
100 Presses 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
111 Planting 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
127 Sugar, Starch, and Carbohydrates 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
134 Cleaning and Liquid Contact with Solids 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
139 Textiles: Weaving 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
144 Woodworking 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
164 Metal Founding 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
180 Motor Vehicles 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
185 Motors: Spring, Weight, or Animal Powered 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
188 Brakes 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
198 Conveyors: Power-Driven 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
203 Distillation: Processes, Separatory 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
206 Special Receptacle or Package 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
211 Supports: Racks 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
216 Etching a Substrate: Processes 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
219 Electric Heating 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
238 Railways: Surface Track 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
248 Supports (e.g., for holding articles, etc.) 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
292 Closure Fasteners 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
315 Electric Lamp and Discharge Devices: Systems 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
326 Electronic Digital Logic Circuitry 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
330 Amplifiers 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
338 Electrical Resistors 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
348 Television 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
361 Electricity: Electrical Systems and Devices 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
373 Industrial Electric Heating Furnaces 1 0 0 0 0 0 0 0 0 0 0 0