U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch |
Patenting In Metropolitan and Non-Metropolitan Areas of the United States
Breakout By Technology Class
1995 - 1999 Utility Patent Grants
Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period
Originating From
Duluth-Superior, MN-WI MSA
(patent origin is determined by the residence of the first-named inventor)
(technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data')
-----------------------------------------------------------------------------------
Class
623
,
Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
1
|
4
|
6
|
-----------------------------------------------------------------------------------
Class
134
,
Cleaning and Liquid Contact with Solids
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
2
|
0
|
2
|
0
|
4
|
-----------------------------------------------------------------------------------
Class
249
,
Static Molds
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
3
|
0
|
0
|
1
|
0
|
4
|
-----------------------------------------------------------------------------------
Class
180
,
Motor Vehicles
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
2
|
3
|
-----------------------------------------------------------------------------------
Class
241
,
Solid Material Comminution or Disintegration
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
1
|
0
|
1
|
3
|
-----------------------------------------------------------------------------------
Class
405
,
Hydraulic and Earth Engineering
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
2
|
0
|
3
|
-----------------------------------------------------------------------------------
Class
424
,
Drug, Bio-Affecting and Body Treating Compositions
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
2
|
3
|
-----------------------------------------------------------------------------------
Class
430
,
Radiation Imagery Chemistry: Process, Composition, or Product Thereof
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
1
|
1
|
0
|
0
|
3
|
-----------------------------------------------------------------------------------
Class
030
,
Cutlery
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
2
|
2
|
-----------------------------------------------------------------------------------
Class
034
,
Drying and Gas or Vapor Contact with Solids
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
1
|
2
|
-----------------------------------------------------------------------------------
Class
052
,
Static Structures (e.g., Buildings)
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
1
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
074
,
Machine Element or Mechanism
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
1
|
2
|
-----------------------------------------------------------------------------------
Class
110
,
Furnaces
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
1
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
166
,
Wells
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
1
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
182
,
Fire Escape, Ladder, or Scaffold
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
1
|
2
|
-----------------------------------------------------------------------------------
Class
222
,
Dispensing
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
2
|
2
|
-----------------------------------------------------------------------------------
Class
229
,
Envelopes, Wrappers, and Paperboard Boxes
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
1
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
246
,
Railway Switches and Signals
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
1
|
0
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
248
,
Supports
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
2
|
0
|
0
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
250
,
Radiant Energy
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
1
|
2
|
-----------------------------------------------------------------------------------
Class
303
,
Fluid-Pressure and Analogous Brake Systems
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
1
|
0
|
0
|
2
|
-----------------------------------------------------------------------------------
Class
340
,
Communications: Electrical
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
1
|
2
|
-----------------------------------------------------------------------------------
Class
428
,
Stock Material or Miscellaneous Articles
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
2
|
2
|
-----------------------------------------------------------------------------------
Class
002
,
Apparel
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
015
,
Brushing, Scrubbing, and General Cleaning
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
037
,
Excavating
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
040
,
Card, Picture, or Sign Exhibiting
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
043
,
Fishing, Trapping, and Vermin Destroying
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
073
,
Measuring and Testing
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
075
,
Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal
Powder Compositions, and Loose Metal Particulate Mixtures
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
089
,
Ordnance
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
100
,
Presses
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
132
,
Toilet
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
135
,
Tent, Canopy, Umbrella, or Cane
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
137
,
Fluid Handling
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
156
,
Adhesive Bonding and Miscellaneous Chemical Manufacture
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
165
,
Heat Exchange
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
177
,
Weighing Scales
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
198
,
Conveyors: Power-Driven
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
206
,
Special Receptacle or Package
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
209
,
Classifying, Separating, and Assorting Solids
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
220
,
Receptacles
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
232
,
Deposit and Collection Receptacles
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
237
,
Heating Systems
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
238
,
Railways: Surface Track
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
269
,
Work Holders
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
273
,
Amusement Devices: Games
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
296
,
Land Vehicles: Bodies and Tops
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
315
,
Electric Lamp and Discharge Devices: Systems
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
323
,
Electricity: Power Supply or Regulation Systems
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
356
,
Optics: Measuring and Testing
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
362
,
Illumination
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
383
,
Flexible Bags
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
384
,
Bearings
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
403
,
Joints and Connections
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
408
,
Cutting by Use of Rotating Axially Moving Tool
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
414
,
Material or Article Handling
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
1
|
0
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
416
,
Fluid Reaction Surfaces (i.e., Impellers)
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
422
,
Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
427
,
Coating Processes
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
435
,
Chemistry: Molecular Biology and Microbiology
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
436
,
Chemistry: Analytical and Immunological Testing
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
0
|
1
|
1
|
-----------------------------------------------------------------------------------
Class
451
,
Abrading
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
1
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
482
,
Exercise Devices
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
1
|
0
|
0
|
0
|
1
|
-----------------------------------------------------------------------------------
Class
514
,
Drug, Bio-Affecting and Body Treating Compositions
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
0
|
0
|
0
|
1
|
0
|
1
|
-----------------------------------------------------------------------------------
-----------------------------------------------------------------------------------
Class ALL,
--- ALL CLASSES ---
Year of Grant ==> |
-- 1995 -- |
-- 1996 -- |
-- 1997 -- |
-- 1998 -- |
-- 1999 -- |
-- Total -- |
# of Patent Grants ==>
|
16
|
19
|
15
|
19
|
32
|
101
|
-----------------------------------------------------------------------------------
-----------------------------------------------------------------------------------
TAF Contacts
Questions regarding these reports should be directed to:
U.S. Patent and Trademark Office
Information Products Division - TAF Branch
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
address of TAF Internet pages : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of TAF reports from : ftp.uspto.gov/pub/taf/
Last Modified: 1 June 2000