Inventor
Thomas R. Sifferman
Inventor
Ponca City, OK, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere47%
E21BEarth or rock drilling23%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
C08LCompositions of macromolecular compounds7%
F17DPipe-line systems7%
Y10TTechnical subjects covered by former us classification7%
PatentTitleYear
10,696,887Oxidative breakers in a silicone based suspension20208,916,508'Drag-reducing copolymer compositions'20148,865,632'Drag-reducing copolymer compositions'20146,492,305'Method of controlling loss of a subterranean treatment fluid'20026,180,571'Fluid loss control additives and subterranean treatment fluids containing the same'20015,951,910'Reticulated bacterial cellulose as a rheological modifier for polyol fluid compositions'19995,277,830'pH tolerant heteropolysaccharide gels for use in profile control'19945,156,214'Method for imparting selectivity to polymeric gel systems'19924,418,755'Methods of inhibiting the flow of water in subterranean formations'19834,412,586'Methods of inhibiting the flow of water in subterranean formations'19834,285,356'Method of transporting viscous hydrocarbons'19814,265,264'Method of transporting viscous hydrocarbons'1981T0984003'Recovery of high viscosity native crude samples'19794,110,275'Control of incompetent formations with thickened acid-settable resin compositions'19784,105,618'Control of incompetent formations with thickened compositions containing base-settable resin'19784,085,802'Use of thickened oil for sand control processes'19784,085,801'Control of incompetent formations with thickened acid-settable resin compositions'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to CONTINENTAL OIL CO (4)· patent assignee history
1978–1983Based in Ponca City, OK, US· patent location history
1981–1983Patents assigned to CONOCO INC (4)· patent assignee history
1992–1994Based in Plano, TX, US· patent location history
1999–2002Based in El Cajon, CA, US· patent location history
2014Patents assigned to CESI CHEMICAL INC (2)· patent assignee history
2014Patents assigned to CHAMPAGNE LAKIA (2)· patent assignee history
2014Patents assigned to GILZOW GYDEON (2)· patent assignee history
2014Based in The Woodlands, TX, US· patent location history
2020Based in Carrollton, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CONOCO INC | 4 | 1981–1983 |
| CONTINENTAL OIL CO | 4 | 1978 |
| CESI CHEMICAL INC | 2 | 2014 |
| CHAMPAGNE LAKIA | 2 | 2014 |
| GILZOW GYDEON | 2 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ponca City, OK, US | 9 | 1978–1983 |
| El Cajon, California, US | 3 | 1999–2002 |
| The Woodlands, Texas, US | 2 | 2014 |
| Plano, Texas, US | 2 | 1992–1994 |
| Carrollton, Texas, US | 1 | 2020 |