Inventor
Friedrich Windscheid
Inventor
Waldshut-Tiengen, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein67%
C09KMaterials for miscellaneous applications, not provided for elsewhere17%
G11BInformation storage based on relative movement between record carrier and transducer17%
PatentTitleYear
7,656,490'LC display device with parallel field component'20105,841,498'Liquid crystal display devices having a parallel electric field and .beta..sub.O, which is not 0 degrees or 90 degrees'19985,841,499'Reflection mode liquid crystal display devices having a parallel electric field and .alpha..sub.0 which is .ltoreq. 30.degree.'19985,576,867'Liquid crystal switching elements having a parallel electric field and .beta..sub.o which is not 0.degree. or 90.degree.'19964,702,945'Optical recording medium'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to BASF AG (1)· patent assignee history
1987Based in Freiburg, DE· patent location history
1996–2010Patents assigned to MERCK PATENT GMBH (4)· patent assignee history
1996–2010Based in Waldshut-Tiengen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MERCK PATENT GMBH | 4 | 1996–2010 |
| BASF AG | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Waldshut-Tiengen, DE | 4 | 1996–2010 |
| Freiburg, DE | 1 | 1987 |