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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 GRANT

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:

VIRGINIA POLYTECHNIC INSTITUTE AND STATE 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 distributed by the year of patent grant
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
532 Organic Compounds (includes Classes 532-570) 8 4 2 7 1 4 7 2 4 0 2 0 1 0 0 1 0 1 1 0 0 0 45
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 0 1 0 1 2 1 1 2 3 2 2 1 1 2 1 1 2 2 3 3 0 2 33
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 5 7 5 1 1 1 0 1 1 2 1 0 1 0 0 1 1 2 2 1 0 0 33
363 Electric Power Conversion Systems 2 0 0 0 0 0 0 0 0 0 1 2 2 3 3 2 3 0 2 2 1 1 24
323 Electricity: Power Supply or Regulation Systems 2 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 3 0 6 4 0 0 19
435 Chemistry: Molecular Biology and Microbiology 4 1 0 0 0 1 1 0 1 0 0 0 0 1 0 1 1 0 0 0 1 1 13
356 Optics: Measuring and Testing 1 0 0 0 0 1 0 0 1 1 0 0 2 0 0 1 2 0 1 1 0 1 12
310 Electrical Generator or Motor Structure 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 3 1 1 2 0 0 0 9
385 Optical Waveguides 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 2 1 2 1 0 0 0 9
427 Coating Processes 0 0 0 0 1 1 1 0 0 0 1 1 0 0 1 0 1 0 0 0 0 1 8
428 Stock Material or Miscellaneous Articles 0 0 0 1 0 0 1 1 0 2 0 1 0 0 0 0 1 0 0 1 0 0 8
343 Communications: Radio Wave Antennas 0 0 0 0 0 1 0 0 2 1 0 0 0 1 1 1 0 0 0 0 0 0 7
209 Classifying, Separating, and Assorting Solids 1 2 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
210 Liquid Purification or Separation 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 1 0 0 1 1 0 6
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 0 0 0 1 0 0 1 0 2 0 0 0 0 0 1 1 0 0 6
250 Radiant Energy 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 0 0 5
333 Wave Transmission Lines and Networks 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 2 0 0 1 5
336 Inductor Devices 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 2 1 0 5
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 5
096 Gas Separation: Apparatus 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 1 0 4
318 Electricity: Motive Power Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 4
361 Electricity: Electrical Systems and Devices 0 0 1 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 4
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 4
060 Power Plants 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 3
324 Electricity: Measuring and Testing 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3
359 Optical: Systems and Elements 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 3
370 Multiplex Communications 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 3
375 Pulse or Digital Communications 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 3
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 3
043 Fishing, Trapping, and Vermin Destroying 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2
047 Plant Husbandry 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
073 Measuring and Testing 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 2
128 Surgery (includes Class 600) 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2
162 Paper Making and Fiber Liberation 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2
181 Acoustics 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2
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 0 1 0 1 0 2
315 Electric Lamp and Discharge Devices: Systems 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 2
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2
374 Thermal Measuring and Testing 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 0 0 0 0 0 0 1 0 1 2
381 Electrical Audio Signal Processing Systems and Devices 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2
415 Rotary Kinetic Fluid Motors or Pumps 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2
454 Ventilation 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 2
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 1 0 0 0 0 0 0 1 0 0 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 1 0 0 0 1 0 0 0 0 2
714 Error Detection/Correction and Fault Detection/Recovery 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 2
034 Drying and Gas or Vapor Contact with Solids 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 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 0 0 0 0 1 1
055 Gas Separation 0 1 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
065 Glass Manufacturing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
074 Machine Element or Mechanism 0 0 0 0 0 0 1 0 0 0 0 0 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
105 Railway Rolling Stock 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
118 Coating Apparatus 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
150 Purses, Wallets, and Protective Covers 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 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
204 Chemistry: Electrical and Wave Energy 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
212 Traversing Hoists 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
222 Dispensing (apparatus and process) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
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 1 0 0 0 0 0 0 0 1
261 Gas and Liquid Contact Apparatus 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
307 Electrical Transmission or Interconnection Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 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 0 0 0 0 0 0 1 0 1
348 Television 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
365 Static Information Storage and Retrieval 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
409 Gear Cutting, Milling, or Planing 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
419 Powder Metallurgy Processes 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
423 Chemistry of Inorganic Compounds 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 0 0 0 0 0 0 0 1 0 0 1
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
436 Chemistry: Analytical and Immunological Testing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
501 Compositions: Ceramic 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
585 Chemistry of Hydrocarbon Compounds 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
606 Surgery (instruments) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
706 DP: Artificial Intelligence (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
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 0 0 0 0 0 0 0 1 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 0 0 0 0 1 0 1
ALL ALL CLASSES 27 18 12 16 6 14 17 16 21 14 9 11 13 15 12 24 28 13 27 24 11 13 361


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