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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

U.S. COLLEGES AND UNIVERSITIES-
UTILITY PATENT GRANTS,
CALENDAR YEARS 1969-2012

- this report was created 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 250 BY R&D EXPENDITURES IN FY 2011

- 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 250 R&D University:

PURDUE 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 distributed by the year of patent filing.
Multiple assignee names may be associated with a university.
Class Class Title PRE_1992 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 19 4 5 3 8 4 4 2 8 11 4 15 9 5 5 1 5 0 2 0 0 0 114
435 Chemistry: Molecular Biology and Microbiology 19 2 3 5 2 1 1 2 0 4 3 1 3 3 3 2 3 0 1 0 0 0 58
532 Organic Compounds (includes Classes 532-570) 34 1 0 2 0 2 2 0 1 2 0 3 4 0 2 0 0 3 0 0 0 0 56
250 Radiant Energy 5 0 0 0 0 1 0 0 0 1 0 2 4 1 3 3 5 1 2 0 0 0 28
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2 0 1 2 1 3 0 3 3 1 1 1 1 0 1 1 2 0 0 0 0 0 23
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 4 0 2 2 1 0 1 0 1 1 0 0 0 1 0 3 0 0 1 1 0 0 18
210 Liquid Purification or Separation 11 0 0 0 2 1 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 17
356 Optics: Measuring and Testing 1 0 0 0 0 1 0 0 1 0 0 1 1 2 3 2 1 3 1 0 0 0 17
073 Measuring and Testing 8 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 1 2 0 1 0 0 16
607 Surgery: Light, Thermal, and Electrical Application 10 0 0 0 0 1 1 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 15
128 Surgery (includes Class 600) 5 0 1 0 0 1 0 0 0 1 1 1 1 1 1 0 0 1 0 0 0 0 14
436 Chemistry: Analytical and Immunological Testing 3 0 0 0 0 0 0 0 0 1 1 3 0 1 1 0 0 2 2 0 0 0 14
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 5 0 0 0 0 1 1 0 4 0 0 1 1 1 0 0 0 0 0 0 0 0 14
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 6 1 0 0 1 0 1 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 13
324 Electricity: Measuring and Testing 3 0 0 1 0 1 0 1 1 0 1 0 0 2 0 0 0 0 0 0 0 0 10
438 Semiconductor Device Manufacturing: Process 3 0 1 2 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 0 0 0 10
428 Stock Material or Miscellaneous Articles 2 0 0 1 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 8
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 1 1 0 1 2 1 2 0 0 0 0 0 0 0 8
204 Chemistry: Electrical and Wave Energy 2 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 7
382 Image Analysis 0 0 0 0 0 0 0 0 1 1 0 0 0 1 2 0 0 2 0 0 0 0 7
426 Food or Edible Material: Processes, Compositions, and Products 4 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 7
127 Sugar, Starch, and Carbohydrates 5 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 6
365 Static Information Storage and Retrieval 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 2 0 0 0 0 6
385 Optical Waveguides 0 0 0 0 0 0 0 0 1 1 0 0 1 1 2 0 0 0 0 0 0 0 6
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 3 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 6
423 Chemistry of Inorganic Compounds 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 6
062 Refrigeration 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 5
340 Communications: Electrical 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 1 1 0 0 0 5
359 Optical: Systems and Elements 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 1 0 1 0 0 0 5
375 Pulse or Digital Communications 2 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 5
398 Optical Communications 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 5
504 Plant Protecting and Regulating Compositions 3 0 0 0 1 0 1 0 0 0 0 0 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 2 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 5
585 Chemistry of Hydrocarbon Compounds 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 5
702 DP: Measuring, Calibrating, or Testing (Data Processing) 2 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 5
082 Turning (e.g., for metal working) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 4
310 Electrical Generator or Motor Structure 1 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 4
333 Wave Transmission Lines and Networks 3 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
345 Computer Graphics Processing and Selective Visual Display Systems 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 4
434 Education and Demonstration 1 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 4
047 Plant Husbandry 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
056 Harvesters 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 0 0 0 3
137 Fluid Handling 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 3
159 Concentrating Evaporators 3 0 0 0 0 0 0 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 1 0 0 0 1 0 1 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) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 3
405 Hydraulic and Earth Engineering 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
427 Coating Processes 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 3
474 Endless Belt Power Transmission Systems or Components 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 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) 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 3
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 3
029 Metal Working 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2
106 Compositions: Coating or Plastic 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
119 Animal Husbandry 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2
203 Distillation: Processes, Separatory 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2
209 Classifying, Separating, and Assorting Solids 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
219 Electric Heating 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 2
280 Land Vehicles 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2
343 Communications: Radio Wave Antennas 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
347 Incremental Printing of Symbolic Information 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 2
366 Agitating (e.g., of articles and materials) 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
370 Multiplex Communications 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
374 Thermal Measuring and Testing 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
378 X-Ray or Gamma Ray Systems or Devices 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 2
417 Pumps 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 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 0 0 0 0 0 0 0 1 1 0 0 0 2
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 2
037 Excavating 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
048 Gas: Heating and Illuminating 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
055 Gas Separation 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
072 Metal Deforming 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
074 Machine Element or Mechanism 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
099 Foods and Beverages: Apparatus 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
116 Signals and Indicators 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
118 Coating Apparatus 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
123 Internal-Combustion Engines 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
126 Stoves and Furnaces 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
134 Cleaning and Liquid Contact with Solids 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
149 Explosive and Thermic Compositions or Charges 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
165 Heat Exchange 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
172 Earth Working 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
188 Brakes 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
201 Distillation: Processes, Thermolytic 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 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 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
225 Severing by Tearing or Breaking 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
251 Valves and Valve Actuation 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
252 Compositions 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
318 Electricity: Motive Power Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 1
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 0 0 0 0 0 0 1
336 Inductor Devices 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
348 Television 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
360 Dynamic Magnetic Information Storage or Retrieval 1 0 0 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 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
372 Coherent Light Generators 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
381 Electrical Audio Signal Processing Systems and Devices 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
403 Joints and Connections 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
414 Material or Article Handling 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
431 Combustion 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
439 Electrical Connectors 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
454 Ventilation 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
460 Crop Threshing or Separating 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
475 Planetary Gear Transmission Systems or Components 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
708 Arithmetic Processing and Calculating (Electrical Computers) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
717 DP: Software Development, Installation, and Management (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
726 Information Security 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 226 9 14 21 22 20 15 13 28 35 21 37 36 29 41 35 44 25 18 3 1 0 693


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