Inventor
ERWIN C. SI
Inventor
US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Dprimary
B29DProducing particular articles from plastics or from substances in a plastic state14%
C08JWorking-up14%
C08LCompositions of macromolecular compounds14%
G02BOptical elements, systems or apparatus14%
G02CSpectacles14%
A61KPreparations for medical, dental or toiletry purposes10%
A45CPurses5%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts5%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2024–2025Patents assigned to COOPERVISION INT LTD (3)· patent assignee history
2024Patents assigned to SUN PHARMACEUTICAL IND LTD (1)· patent assignee history
2024–2025Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COOPERVISION INT LTD | 3 | 2024–2025 |
| SUN PHARMACEUTICAL IND LTD | 1 | 2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 4 | 2024–2025 |