Inventor
Elaine Lange
Inventor
Bellaire, TX, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling44%
C07CAcyclic or carbocyclic compounds22%
C11DDetergent compositions22%
C09KMaterials for miscellaneous applications, not provided for elsewhere11%
PatentTitleYear
10,781,673Base pipes for sand control screen assemblies202010,450,844Drainage layers for sand control screen assemblies201910,184,323Base pipes for sand control screen assemblies20196,303,562'Compositions comprising 2-(2-hydroxyphenyl)benzenesulfinate and alkyl-substituted derivatives thereof'20015,973,195'Surfactants derived from 2-(2-hydroxyphenyl)benzenesulfinate and alkyl-substituted derivatives'19995,711,373'Method for recovering a hydrocarbon liquid from a subterranean formation'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998Patents assigned to EXXON PRODUCTION RESEARCH CO (1)· patent assignee history
1998–2020Based in Bellaire, TX, US· patent location history
1999Patents assigned to ENERGY BIOSYSTEMS CORP (1)· patent assignee history
2001Patents assigned to ENCHIRA BIOTECHNOLOGY CORP (1)· patent assignee history
2019–2020Patents assigned to CHEVRON USA INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEVRON USA INC | 3 | 2019–2020 |
| ENCHIRA BIOTECHNOLOGY CORP | 1 | 2001 |
| ENERGY BIOSYSTEMS CORP | 1 | 1999 |
| EXXON PRODUCTION RESEARCH CO | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bellaire, Texas, US | 6 | 1998–2020 |