Inventor
Ingrid Keller
Inventor
Monchengladbach, DE
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C12Nprimary
C12NMicroorganisms or enzymes38%
C08BPolysaccharides25%
A23CDairy products, e.g. milk, butter or cheese13%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
4,910,142'Cell culture microcarrier, method for preparing same and use thereof for cultivating anchorage-dependent cells'19904,824,946'Cell culture microcarrier, method for preparing same and use thereof for cultivating anchorage-dependent cells'19893,969,538'Recovery of enzymes with ion exchangers'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to PFEIFFER & LANGEN (1)· patent assignee history
1976–1990Based in Monchengladbach, DE· patent location history
1989–1990Patents assigned to PFEIFER & LANGEN (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PFEIFER & LANGEN | 2 | 1989–1990 |
| PFEIFFER & LANGEN | 1 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| Monchengladbach, DE | 3 | 1976–1990 |