Inventor
Nicholas Mario DA Costa
Inventor
Harlow, GB
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus31%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds23%
A61LMethods or apparatus for sterilising materials or objects in general15%
A61KPreparations for medical, dental or toiletry purposes8%
B01DSeparation8%
B29DProducing particular articles from plastics or from substances in a plastic state8%
C08JWorking-up8%
PatentTitleYear
4,981,487'Colored hydrogel objects and their production-containing a water-insoluble opaquing agent'19914,361,689'Cross-linked hydrophilic polymers'19824,036,814'Lightly cross-linked hydrogel formed from N-vinyl lactam and hydrophobic acrylic ester comonomer'19774,022,754'Novel copolymer having utility as contact lens'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to WARNER LAMBERT CO (2)· patent assignee history
1977Based in Harlow, GB· patent location history
1982Patents assigned to DA COSTA NICHOLAS M (1)· patent assignee history
1982Patents assigned to PATEL PRAVIN G (1)· patent assignee history
1982Based in Houghton Regis, GB· patent location history
1991Patents assigned to IGEL INT LTD (1)· patent assignee history
1991Based in Wellhead, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WARNER LAMBERT CO | 2 | 1977 |
| DA COSTA NICHOLAS Mself | 1 | 1982 |
| IGEL INT LTD | 1 | 1991 |
| PATEL PRAVIN G | 1 | 1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Harlow, GB | 2 | 1977 |
| Wellhead, GB | 1 | 1991 |
| Houghton Regis, GB | 1 | 1982 |