Darwin S Crouser
Inventor
Stats
- 17 US patents issued
- 17 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 17 US Patents Issued
- 17 US Applications Filed
- 378 Total Citation Count
- Dec 13, 1999 Most Recent Filing
- Jan 23, 1989 Earliest Filing
Work History
Patent Owner | Applications Filed | Year |
---|---|---|
HEALTHY GAIN INVESTMENTS LIMITED | 1
1 2 1 5 3 1 | 1990
1993 1994 1995 1996 1997 1998 |
THE HOOVER COMPANY | 1
| 1989
|
TECHTRONIC FLOOR CARE TECHNOLOGY LIMITED | 1
1 | 1996
1999 |
Inventor Addresses
Address | Duration |
---|---|
Canton, OH | Aug 04, 92 - Feb 20, 01 |
North Canton, OH | Dec 26, 89 - Dec 26, 89 |
Technology Profile
Technology | Matters | |
---|---|---|
A46B: | BRUSHES | 1 |
A47L: | DOMESTIC WASHING OR CLEANING | 14 |
F01D: | NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES | 1 |
Patents / Publication
Patents / Publication # | Year of Publication / Issued | Title | Citations |
---|---|---|---|
6189174 | 2001 | Carpet extractor brush assembly | 5 |
6138322 | 2000 | Upright carpet and upholstery extractor | 15 |
6108860 | 2000 | Compact carpet and upholstery extractor | 10 |
6009593 | 2000 | Carpet extractor brush assembly | 24 |
5943732 | 1999 | Door valve for utility vacuum cleaners | 15 |
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