Inventor
Ulrich Greis
Inventor
Weyarn, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus29%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them29%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for14%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
4,172,219'Daylight projection screen and method and apparatus for making the same'19794,076,384'Rear-projection viewing screen'19784,032,343'Method for production of rotationally symmetric non-spherical optical elements'19774,009,386'Method and arrangement for automatically focussing an objective onto a subject, using autocollimation'19773,948,660'Method for the manufacture of fresnel lenses using light-sensitive materials'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to AGFA GEVAERT AG (5)· patent assignee history
1976–1979Based in Weyarn, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AGFA GEVAERT AG | 5 | 1976–1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weyarn, DE | 5 | 1976–1979 |