Inventor
Manfred Weigand
Inventor
Weiterstadt, DE
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Pprimary
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds17%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties17%
A61KPreparations for medical, dental or toiletry purposes8%
A61QSpecific use of cosmetics or similar toiletry preparations8%
B23BTurning8%
B23CMilling8%
C03CChemical composition of glasses, glazes or vitreous enamels8%
C04BLime, magnesia8%
C23CCoating metallic material8%
C23DEnamelling of, or applying a vitreous layer to, metals8%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1997Patents assigned to MERCK PATENT GMBH (3)· patent assignee history
1991Based in Darmstadt, DE· patent location history
1992–1997Based in Weiterstadt, DE· patent location history
2018Patents assigned to CEMECON AG (1)· patent assignee history
2018Based in Aachen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MERCK PATENT GMBH | 3 | 1991–1997 |
| CEMECON AG | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weiterstadt, DE | 2 | 1992–1997 |
| Aachen, DE | 1 | 2018 |
| Darmstadt, DE | 1 | 1991 |