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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:

STANFORD 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
435 Chemistry: Molecular Biology and Microbiology 16 5 2 1 2 4 2 4 7 11 14 20 8 22 20 19 18 19 4 0 0 0 198
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 10 5 2 5 4 3 1 5 2 6 14 13 9 6 8 10 9 12 8 1 0 0 133
324 Electricity: Measuring and Testing 5 0 1 1 4 4 5 4 7 4 5 3 5 2 2 5 4 4 6 5 1 0 77
359 Optics: Systems and Elements 10 3 2 1 2 2 3 4 3 4 2 4 7 5 4 5 5 1 6 2 2 0 77
128 Surgery (includes Class 600) 12 0 5 1 2 2 0 2 2 4 4 7 1 0 6 5 5 10 5 1 0 0 74
385 Optical Waveguides 26 4 5 7 5 2 4 0 0 1 0 1 0 2 2 4 1 3 4 0 1 0 72
356 Optics: Measuring and Testing 20 2 6 4 2 3 2 4 3 1 1 2 1 3 2 4 0 5 0 1 0 0 66
372 Coherent Light Generators 12 1 5 2 5 4 1 1 4 1 2 2 3 1 1 1 0 1 3 0 0 0 50
532 Organic Compounds (includes Classes 532-570) 17 0 0 0 0 0 0 1 2 2 2 4 0 2 2 3 1 4 1 2 0 0 43
250 Radiant Energy 5 0 2 1 2 4 1 1 4 2 2 1 0 3 3 5 1 0 3 1 0 0 41
073 Measuring and Testing 18 0 0 0 1 1 0 3 2 0 1 1 1 3 1 3 0 1 1 1 1 0 39
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 9 0 0 0 2 1 0 1 0 1 1 0 1 2 1 1 4 1 1 1 1 0 28
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 2 1 1 0 0 0 0 0 0 3 2 3 0 4 3 2 3 3 0 1 0 0 28
438 Semiconductor Device Manufacturing: Process 4 1 1 0 1 1 0 0 1 0 2 2 0 2 0 4 0 0 3 1 0 0 23
378 X-Ray or Gamma Ray Systems or Devices 14 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 1 2 0 0 0 22
204 Chemistry: Electrical and Wave Energy 1 1 0 0 1 3 4 2 3 2 2 0 1 0 0 1 0 0 0 0 0 0 21
367 Communications, Electrical: Acoustic Wave Systems and Devices 4 0 0 0 0 1 0 1 0 0 1 0 2 0 1 3 3 1 2 0 0 0 19
084 Music 3 1 0 0 1 1 1 0 0 3 4 1 0 2 1 0 0 0 0 0 0 0 18
375 Pulse or Digital Communications 0 0 0 0 0 0 1 0 2 1 0 2 1 0 4 3 3 0 0 0 0 0 17
708 Arithmetic Processing and Calculating (Electrical Computers) 7 1 1 0 1 0 0 0 1 0 1 0 3 0 1 0 0 1 0 0 0 0 17
436 Chemistry: Analytical and Immunological Testing 8 0 0 0 0 0 2 0 1 1 0 0 3 0 0 0 0 1 0 0 0 0 16
382 Image Analysis 1 1 0 0 0 0 0 1 2 0 2 1 0 0 2 0 4 0 1 0 0 0 15
607 Surgery: Light, Thermal, and Electrical Application 0 3 0 0 0 0 1 1 0 0 0 1 0 0 1 1 2 3 0 1 0 0 14
216 Etching a Substrate: Processes 0 0 0 0 2 0 3 0 1 1 1 0 1 1 1 1 0 0 1 0 0 0 13
455 Telecommunications 0 0 0 0 0 0 0 0 1 1 0 3 1 1 0 4 1 1 0 0 0 0 13
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1 0 0 0 0 1 0 1 0 0 1 1 1 0 3 2 2 0 0 0 0 0 13
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 5 0 0 0 0 0 0 0 0 2 1 0 1 0 1 0 0 0 0 0 0 0 10
210 Liquid Purification or Separation 1 0 0 1 0 0 0 2 2 0 0 0 0 1 0 0 0 2 1 0 0 0 10
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 0 1 0 0 0 1 0 1 0 1 1 0 0 4 1 0 0 0 0 0 0 10
345 Computer Graphics Processing and Selective Visual Display Systems 2 0 0 0 0 0 0 0 0 1 0 0 1 2 2 0 0 1 1 0 0 0 10
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 3 0 2 1 1 1 0 0 0 1 0 1 0 0 0 0 0 0 10
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 3 0 0 0 0 0 0 1 2 0 0 1 0 0 0 1 0 0 1 0 0 0 9
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 1 0 0 0 0 0 1 0 0 0 1 1 1 2 1 0 1 0 0 9
348 Television 3 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 3 0 0 0 0 8
365 Static Information Storage and Retrieval 5 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 8
428 Stock Material or Miscellaneous Articles 1 1 0 0 0 1 0 0 0 0 2 0 1 0 1 1 0 0 0 0 0 0 8
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 2 1 1 1 0 0 8
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 0 0 0 1 0 0 0 1 1 1 2 0 1 1 0 0 0 0 0 0 0 8
310 Electrical Generator or Motor Structure 3 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 7
333 Wave Transmission Lines and Networks 1 0 1 1 0 0 0 1 1 0 0 0 0 2 0 0 0 0 0 0 0 0 7
341 Coded Data Generation or Conversion 1 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 1 0 1 0 0 0 7
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 0 0 0 0 0 0 0 0 1 0 2 0 2 0 0 2 0 0 0 0 0 7
604 Surgery (Medicators and Receptors) 1 0 0 0 0 0 1 1 0 1 0 0 0 0 1 0 1 0 0 1 0 0 7
062 Refrigeration 4 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 6
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 1 1 0 0 0 6
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 0 0 0 0 0 0 1 1 0 0 0 0 1 2 1 0 0 0 0 0 0 6
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 0 1 0 0 6
714 Error Detection/Correction and Fault Detection/Recovery 2 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 6
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 1 0 1 1 0 0 0 6
326 Electronic Digital Logic Circuitry 0 0 0 0 0 1 0 0 0 3 0 0 0 1 0 0 0 0 0 0 0 0 5
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 2 1 0 0 0 0 0 5
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 0 0 1 0 0 0 0 0 2 0 1 0 0 0 0 1 0 0 0 0 0 5
355 Photocopying 0 0 0 0 0 0 0 0 0 0 1 3 0 1 0 0 0 0 0 0 0 0 5
369 Dynamic Information Storage or Retrieval 0 0 0 0 0 0 0 1 0 0 0 0 1 3 0 0 0 0 0 0 0 0 5
423 Chemistry of Inorganic Compounds 3 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5
606 Surgery (instruments) 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 0 0 5
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 1 1 0 0 0 0 0 5
060 Power Plants 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 4
251 Valves and Valve Actuation 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
313 Electric Lamp and Discharge Devices 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0 0 0 4
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 4
347 Incremental Printing of Symbolic Information 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 1 0 0 0 0 4
370 Multiplex Communications 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 4
381 Electrical Audio Signal Processing Systems and Devices 2 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 4
398 Optical Communications 3 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 4
427 Coating Processes 0 0 0 1 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 4
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 4
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 4
029 Metal Working 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3
136 Batteries: Thermoelectric and Photoelectric 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 3
340 Communications: Electrical 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 3
380 Cryptography 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 3
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 3
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 3
713 Support (Electrical Computers and Digital Processing Systems) 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 3
065 Glass Manufacturing 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 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
211 Supports: Racks 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
315 Electric Lamp and Discharge Devices: Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 2
331 Oscillators 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 2
338 Electrical Resistors 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
351 Optics: Eye Examining, Vision Testing and Correcting 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2
415 Rotary Kinetic Fluid Motors or Pumps 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 2
419 Powder Metallurgy Processes 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2
494 Imperforate Bowl: Centrifugal Separators 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2
585 Chemistry of Hydrocarbon Compounds 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 2
601 Surgery: Kinesitherapy 1 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 0 0 2
005 Beds 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
052 Static Structures (e.g., Buildings) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
074 Machine Element or Mechanism 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
106 Compositions: Coating or Plastic 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
108 Horizontally Supported Planar Surfaces 0 0 0 0 0 1 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
125 Stone Working 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
137 Fluid Handling 1 0 0 0 0 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
148 Metal Treatment 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
165 Heat Exchange 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
178 Telegraphy 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
181 Acoustics 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 1
228 Metal Fusion Bonding 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
252 Compositions 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
285 Pipe Joints or Couplings 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
307 Electrical Transmission or Interconnection Systems 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
323 Electricity: Power Supply or Regulation Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
330 Amplifiers 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
332 Modulators 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
343 Communications: Radio Wave Antennas 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
361 Electricity: Electrical 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
366 Agitating (e.g., of articles and materials) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
374 Thermal Measuring and Testing 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
379 Telephonic Communications 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 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
417 Pumps 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
420 Alloys or Metallic Compositions 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 0 0 0 1 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
504 Plant Protecting and Regulating Compositions 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
706 DP: Artificial Intelligence (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
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (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
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 274 31 42 34 47 46 43 47 63 66 79 87 63 93 106 107 86 93 62 27 6 0 1502

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