Inventor
Donald C. Cameron
Inventor
Tulsa, OK, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling24%
F16LPipes19%
F04BPositive-displacement machines for liquids14%
F16KValves10%
Y10TTechnical subjects covered by former us classification10%
B01FMixing, e.g. dissolving, emulsifying or dispersing5%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding5%
F16JPistons5%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
5,230,363'Suction valve for high pressure slurry pump'19934,797,003'Foamed slurry generator'19894,775,008'Adjustable cement head manifold'19884,687,421'Frangible pressure relief disc assembly and positive displacement pumps containing the disc assembly'19874,659,115'Reducer coupling and positioner tool for the coupling'19874,659,116'Pipe union for cryogenic fluids'19874,573,712'Reducer coupling and positioner tool for the coupling'19864,572,519'Packing assembly for use in a plunger bore'19864,367,651'Pressure transducer body'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1986Patents assigned to DOW CHEMICAL CO (2)· patent assignee history
1983–1993Based in Tulsa, OK, US· patent location history
1986–1993Patents assigned to DOWELL SCHLUMBERGER INC (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOWELL SCHLUMBERGER INC | 7 | 1986–1993 |
| DOW CHEMICAL CO | 2 | 1983–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tulsa, OK, US | 9 | 1983–1993 |