Inventor
Ralf Steinstrasser
Inventor
Darmstadt, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere31%
C07CAcyclic or carbocyclic compounds13%
A23FCoffee6%
A23GCocoa6%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for6%
A61KPreparations for medical, dental or toiletry purposes6%
B01DSeparation6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C02FTreatment of water, waste water, sewage, or sludge6%
C22BProduction and refining of metals6%
PatentTitleYear
5,958,471'Spray dried polyol composition and method of making'19995,238,663'Nickel recovery process'19934,012,434'Nematic compounds and mixtures'19774,011,173'Modified nematic mixtures with positive dielectric anisotropy'19774,002,670'Nematic compounds and mixtures'19774,001,137'Nematic compounds and mixtures'19773,953,491'Phenyl esters of 4-benzoyloxybenzoic acid'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1999Patents assigned to MERCK PATENT GMBH (7)· patent assignee history
1976–1977Based in Darmstadt, DE· patent location history
1993–1999Based in Rossdorf, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MERCK PATENT GMBH | 7 | 1976–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Darmstadt, DE | 5 | 1976–1977 |
| Rossdorf, DE | 2 | 1993–1999 |