Inventor
Donald W. Bilsbarrow
Inventor
Tucson, AZ, US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Lprimary
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure50%
G01MTesting static or dynamic balance of machines or structures50%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990Patents assigned to UNITED TECHNOLOGIES CORP (1)· patent assignee history
1990–1998Based in Tucson, AZ, US· patent location history
1993Patents assigned to HAMILTON TEST SYSTEMS INC (1)· patent assignee history
1998Patents assigned to ENVIROTEST SYSTEMS INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ENVIROTEST SYSTEMS INC | 1 | 1998 |
| HAMILTON TEST SYSTEMS INC | 1 | 1993 |
| UNITED TECHNOLOGIES CORP | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tucson, AZ, US | 3 | 1990–1998 |