Inventor
Douglass R. Waring
Inventor
Ballston Spa, NY, US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids50%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids50%
PatentTitleYear
4,563,131'Variable displacement blower'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986Patents assigned to MECHANICAL TECH INC (1)· patent assignee history
1986Based in Ballston Spa, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MECHANICAL TECH INC | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ballston Spa, New York, US | 1 | 1986 |