Inventor
Richard C. Ellis
Inventor
East Bridgewater, MA, US
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling25%
F25BRefrigeration machines, plants or systems25%
H01HElectric switches25%
H02KDynamo-electric machines25%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to COMPLETION TOOL (1)· patent assignee history
1989Based in Kingwood, TX, US· patent location history
1992Patents assigned to TEXAS INSTRUMENTS INC (1)· patent assignee history
1992Based in East Bridgewater, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COMPLETION TOOL | 1 | 1989 |
| TEXAS INSTRUMENTS INC | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| East Bridgewater, Massachusetts, US | 1 | 1992 |
| Kingwood, Texas, US | 1 | 1989 |