U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch

U.S. COLLEGES AND UNIVERSITIES-
UTILITY PATENT GRANTS,
CALENDAR YEARS 1969-2000

- 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 100 BY R&D EXPENDITURES IN FY 1999

- 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 100 R&D University:

NORTHWESTERN 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' )
 
Class Class Title PRE_1980 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Total
532 Organic Compounds (includes Classes 532-570) 0 1 0 0 0 1 2 1 0 1 1 3 1 0 1 0 10 3 1 1 0 0 27
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 3 0 0 0 1 0 1 0 2 0 1 2 1 1 0 3 5 1 0 1 2 0 24
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1 0 0 0 0 0 0 0 1 0 0 0 0 2 2 1 4 3 1 2 1 0 18
435 Chemistry: Molecular Biology and Microbiology 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 3 4 3 3 1 0 0 17
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 2 3 1 1 2 1 3 0 1 1 1 0 0 1 0 0 0 0 0 0 0 17
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 3 0 1 3 1 0 0 10
428 Stock Material or Miscellaneous Articles 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 1 3 1 1 0 0 9
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 1 0 0 0 0 1 0 1 0 0 0 0 0 0 1 0 2 1 1 0 0 0 8
436 Chemistry: Analytical and Immunological Testing 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 2 1 0 0 0 0 8
128 Surgery (includes Class 600) 1 1 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 7
372 Coherent Light Generators 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 1 0 7
427 Coating Processes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 1 1 0 0 0 7
606 Surgery (instruments) 5 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 7
378 X-Ray or Gamma Ray Systems or Devices 1 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 6
602 Surgery: Splint, Brace, or Bandage 1 0 1 0 0 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 5
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 4
250 Radiant Energy 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 4
252 Compositions 0 0 0 2 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 4
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 4
385 Optical Waveguides 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 4
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 1 0 0 0 4
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 0 0 4
359 Optics: Systems (Including Communication) and Elements 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 3
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
438 Semiconductor Device Manufacturing: Process 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 3
585 Chemistry of Hydrocarbon Compounds 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 3
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3
073 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
148 Metal Treatment 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2
204 Chemistry: Electrical and Wave Energy 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 2
310 Electrical Generator or Motor Structure 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
348 Television 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
356 Optics: Measuring and Testing 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 2
433 Dentistry 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
604 Surgery (Medicators and Receptors) 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 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
072 Metal Deforming 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
104 Railways 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
219 Electric Heating 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 0 1 0 0 0 0 1
326 Electronic Digital Logic Circuitry 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
333 Wave Transmission Lines and Networks 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
340 Communications: Electrical 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
381 Electrical Audio Signal Processing Systems and Devices 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
404 Road Structure, Process, or Apparatus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
417 Pumps 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
418 Rotary Expansible Chamber Devices 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
434 Education and Demonstration 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
ALL ALL CLASSES 37 4 6 3 3 12 7 8 7 4 4 8 8 10 11 19 38 29 20 11 5 0 254



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Last Modified: May 22, 2002