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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:

PRINCETON 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
532 Organic Compounds (includes Classes 532-570) 1 0 1 1 3 2 1 4 5 1 5 1 1 4 1 3 1 1 1 0 0 0 37
435 Chemistry: Molecular Biology and Microbiology 0 0 1 0 0 0 1 0 3 2 3 3 0 1 5 3 6 4 4 0 0 0 36
428 Stock Material or Miscellaneous Articles 0 0 0 0 0 0 0 0 0 1 1 2 2 5 7 4 2 3 4 1 0 0 32
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 0 0 1 2 7 1 3 0 1 0 1 1 2 1 2 2 2 2 1 0 0 0 29
313 Electric Lamp and Discharge Devices 0 0 0 0 0 0 0 0 0 0 0 0 4 6 3 2 4 2 1 3 0 0 25
438 Semiconductor Device Manufacturing: Process 0 0 0 0 0 0 0 0 0 0 1 0 2 4 1 3 3 3 4 0 0 0 21
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 0 0 0 0 0 0 0 1 0 1 3 0 3 1 1 1 2 0 0 13
204 Chemistry: Electrical and Wave Energy 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 2 1 3 0 0 0 0 10
385 Optical Waveguides 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 1 1 1 1 1 0 0 9
372 Coherent Light Generators 0 2 0 0 0 0 0 0 0 0 0 0 0 2 2 0 1 1 0 0 0 0 8
250 Radiant Energy 0 0 0 0 0 0 0 0 0 1 1 0 0 2 3 0 0 0 0 0 0 0 7
398 Optical Communications 0 0 0 0 0 2 0 0 0 0 1 0 4 0 0 0 0 0 0 0 0 0 7
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 0 0 0 0 0 0 1 0 1 1 0 1 0 0 1 0 2 0 0 0 0 7
427 Coating Processes 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 0 1 0 1 0 6
359 Optics: Systems and Elements 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 2 0 0 0 0 0 5
375 Pulse or Digital Communications 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 2 0 0 0 0 0 5
062 Refrigeration 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 1 0 0 0 0 0 4
310 Electrical Generator or Motor Structure 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 4
324 Electricity: Measuring and Testing 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 4
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 4
136 Batteries: Thermoelectric and Photoelectric 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 3
341 Coded Data Generation or Conversion 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 3
345 Computer Graphics Processing and Selective Visual Display Systems 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 3
356 Optics: Measuring and Testing 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3
044 Fuel and Related Compositions 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 2
106 Compositions: Coating or Plastic 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 2
423 Chemistry of Inorganic Compounds 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 2
436 Chemistry: Analytical and Immunological Testing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 2
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 2
588 Hazardous or Toxic Waste Destruction or Containment 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 2
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 2
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 2
029 Metal Working 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
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 0 0 0 0 0 1 0 0 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
123 Internal-Combustion Engines 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
148 Metal Treatment 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
219 Electric Heating 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
222 Dispensing (apparatus and process) 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
244 Aeronautics and Astronautics 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
315 Electric Lamp and Discharge Devices: Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
331 Oscillators 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
347 Incremental Printing of Symbolic Information 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
348 Television 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
358 Facsimile and Static Presentation Processing 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
368 Horology: Time Measuring Systems or Devices 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
378 X-Ray or Gamma Ray Systems or Devices 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
380 Cryptography 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
382 Image Analysis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
405 Hydraulic and Earth Engineering 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
434 Education and Demonstration 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 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 1 0 0 0 1
451 Abrading 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
501 Compositions: Ceramic 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
585 Chemistry of Hydrocarbon Compounds 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
714 Error Detection/Correction and Fault Detection/Recovery 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 2 2 4 3 12 8 8 10 12 9 20 14 27 42 31 33 36 31 24 8 2 0 338

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