Inventor
Douglas E. Betts
Inventor
Chapel Hill, NC, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B08Bprimary
B08BCleaning in general22%
C11DDetergent compositions22%
D06LDry-cleaning, washing or bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods22%
A61KPreparations for medical, dental or toiletry purposes17%
A61QSpecific use of cosmetics or similar toiletry preparations17%
PatentTitleYear
7,455,848'Skin care composition containing an anionic polymer'20086,696,067'Cosmetic compositions containing dispersion polymers'20046,569,413'Hair fixative composition containing an anionic polymer'20036,224,774'Method of entraining solid particulates in carbon dioxide fluids'20015,944,996'Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants'19995,866,005'Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants'19995,783,082'Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2001Patents assigned to UNIV NORTH CAROLINA (4)· patent assignee history
1998–2001Based in Chapel Hill, NC, US· patent location history
2003–2004Patents assigned to ONDEO NALCO CO (2)· patent assignee history
2003–2004Based in Warrenville, IL, US· patent location history
2008Patents assigned to NALCO CO (1)· patent assignee history
2008Based in Durham, NC, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV NORTH CAROLINA | 4 | 1998–2001 |
| ONDEO NALCO CO | 2 | 2003–2004 |
| NALCO CO | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chapel Hill, NC, US | 4 | 1998–2001 |
| Warrenville, Illinois, US | 2 | 2003–2004 |
| Durham, NC, US | 1 | 2008 |