Inventor
David Engel
Inventor
Springwater, NY, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Fprimary
B01FMixing, e.g. dissolving, emulsifying or dispersing24%
Y10TTechnical subjects covered by former us classification16%
F16CShafts12%
E21BEarth or rock drilling8%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
E01DConstruction of bridges, elevated roadways or viaducts4%
E02BHydraulic engineering4%
E02DFoundations4%
F16HGearing4%
PatentTitleYear
10,472,901Electrical wellbore instrument swivel connector20197,705,882'Device and system for enabling families to share in long haul truckers\' travels'20107,407,322'Tripod-mounted magnetic mixer apparatus and method'20086,935,771'Mixer seal and bearing apparatus and method'20056,877,750'Drive assembly for a mixer'20056,843,612'Retaining ring apparatus and method'20056,715,913'Shaft bearing support method and apparatus'20046,457,853'Impeller device and method'20025,842,377'Mixer gearbox assembly having a cross-shaft alternatively mounted in one or two bearings and configured to receive different drive motors'19985,746,536'Double taper lock system for a locking a mixer shaft in a quill'19985,720,486'Self-formed labyrinth seal'19985,560,709'Mixer drive apparatus enabling radial changing of shaft seal'1996D0323663'Transmission cover'19924,141,668'Method and apparatus for erecting a bridge structure'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979Patents assigned to RAYMOND INT INC (1)· patent assignee history
1979–2019Based in Houston, TX, US· patent location history
1992–1998Patents assigned to GEN SIGNAL CORP (4)· patent assignee history
1992–2008Based in Springwater, NY, US· patent location history
2002–2008Patents assigned to SPX CORP (6)· patent assignee history
2002Based in Rochester, NY, US· patent location history
2010Patents assigned to INT TRUCK INTELLECTUAL PROP CO (1)· patent assignee history
2010Based in Tianjin, CN· patent location history
2019Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SPX CORP | 6 | 2002–2008 |
| GEN SIGNAL CORP | 4 | 1992–1998 |
| INT TRUCK INTELLECTUAL PROP CO | 1 | 2010 |
| RAYMOND INT INC | 1 | 1979 |
| SCHLUMBERGER TECHNOLOGY CORP | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Springwater, New York, US | 10 | 1992–2008 |
| Houston, Texas, US | 2 | 1979–2019 |
| Tianjin, CN | 1 | 2010 |
| Rochester, New York, US | 1 | 2002 |