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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 GRANT

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:

DUKE UNIVERSITY

( count of patent grants, as distributed by calendar year of grant )
( 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) 2 0 2 0 1 3 1 3 1 2 4 4 6 6 7 7 14 14 10 7 8 10 112
435 Chemistry: Molecular Biology and Microbiology 2 0 0 0 1 0 0 0 1 2 7 4 13 6 10 12 4 11 7 12 5 4 101
128 Surgery (includes Class 600) 4 1 1 0 2 1 1 0 4 3 3 2 3 2 2 1 6 3 2 4 1 2 48
532 Organic Compounds (includes Classes 532-570) 2 1 0 0 1 0 1 0 0 1 0 1 1 1 1 3 0 5 5 3 0 2 28
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 2 0 0 0 0 0 0 0 0 1 3 2 2 1 1 3 3 0 1 1 0 0 20
606 Surgery (instruments) 0 0 0 1 0 0 0 0 0 0 1 0 1 2 1 2 0 2 2 2 0 0 14
345 Computer Graphics Processing and Selective Visual Display Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 5 2 1 12
607 Surgery: Light, Thermal, and Electrical Application 0 0 0 0 0 1 0 0 1 1 0 0 2 1 0 0 2 0 0 1 1 1 11
359 Optics: Systems and Elements 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 4 2 0 2 0 9
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 1 1 0 1 1 8
353 Optics: Image Projectors 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 1 0 7
436 Chemistry: Analytical and Immunological Testing 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 1 7
324 Electricity: Measuring and Testing 0 0 1 3 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 6
378 X-Ray or Gamma Ray Systems or Devices 0 0 0 0 0 2 0 0 1 1 0 0 0 1 0 1 0 0 0 0 0 0 6
601 Surgery: Kinesitherapy 0 0 0 0 0 1 1 0 0 0 0 0 1 0 2 0 0 0 0 0 1 0 6
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 1 0 0 0 1 6
204 Chemistry: Electrical and Wave Energy 3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5
349 Liquid Crystal Cells, Elements and Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 1 0 5
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 1 0 2 0 0 0 0 4
250 Radiant Energy 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 1 0 0 0 4
382 Image Analysis 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 4
604 Surgery (Medicators and Receptors) 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 1 0 0 0 4
131 Tobacco 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 0 3
348 Television 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 3
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 3
438 Semiconductor Device Manufacturing: Process 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3
073 Measuring and Testing 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 2
252 Compositions 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2
310 Electrical Generator or Motor Structure 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 2
420 Alloys or Metallic Compositions 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 2
423 Chemistry of Inorganic Compounds 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 0 0 0 0 0 1 0 0 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 0 0 1 1 0 2
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
005 Beds 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
023 Chemistry: Physical Processes 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
062 Refrigeration 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 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 1 0 0 0 0 0 0 0 0 0 0 1
076 Metal Tools and Implements, Making 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
091 Motors: Expansible Chamber Type 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
181 Acoustics 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
210 Liquid Purification or Separation 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
219 Electric Heating 0 0 0 0 0 0 0 0 0 0 1 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 0 0 1 0 0 0 0 0 0 1
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
294 Handling: Hand and Hoist-Line Implements 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
331 Oscillators 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
351 Optics: Eye Examining, Vision Testing and Correcting 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
356 Optics: Measuring and Testing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
362 Illumination 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
366 Agitating (e.g., of articles and materials) 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
372 Coherent Light Generators 0 0 0 0 0 0 0 0 0 0 0 0 1 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 0 0 1 0 0 0 0 0 0 0 1
427 Coating Processes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
588 Hazardous or Toxic Waste Destruction or Containment 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (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
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
711 Memory (Electrical Computers and Digital Processing Systems) 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 21 4 6 4 9 11 7 6 9 12 29 20 37 21 30 36 33 57 39 40 26 25 482

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