Inventor
Steven E. Trumbull
Inventor
San Leandro, CA, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils33%
Y10TTechnical subjects covered by former us classification24%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
C01BNon-metallic elements5%
C07CAcyclic or carbocyclic compounds5%
C23CCoating metallic material5%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application5%
Y02PClimate change mitigation technologies in the production or processing of goods5%
PatentTitleYear
7,674,739'Regeneration of ionic liquid catalyst using a metal in the absence of added hydrogen'20106,548,030'Apparatus for hydrocarbon processing'20035,863,418'Low-sulfur reforming process'19995,676,821'Method for increasing carburization resistance'19975,674,376'Low sufur reforming process'19975,620,937'Pretreatment method for increasing conversion of reforming catalyst'19975,575,902'Cracking processes'19965,382,353'Pretreatment method for increasing conversion of reforming catalyst'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995Patents assigned to CHEVRON RES & TECH (1)· patent assignee history
1995–2010Based in San Leandro, CA, US· patent location history
1996–1999Patents assigned to CHEVRON CHEM CO (5)· patent assignee history
2003Patents assigned to CHEVRON PHILLIPS CHEMICAL CO (1)· patent assignee history
2003Based in Richmond, CA, US· patent location history
2010Patents assigned to CHEVRON USA INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEVRON CHEM CO | 5 | 1996–1999 |
| CHEVRON PHILLIPS CHEMICAL CO | 1 | 2003 |
| CHEVRON RES & TECH | 1 | 1995 |
| CHEVRON USA INC | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Leandro, California, US | 7 | 1995–2010 |
| Richmond, California, US | 1 | 2003 |