Inventor
Wilhelm Schmidt
Inventor
Lorrach, DE
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus21%
B62DMotor vehicles11%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments11%
D03JAuxiliary weaving apparatus11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
Y10TTechnical subjects covered by former us classification11%
A01GHorticulture5%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
B29CShaping or joining of plastics5%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
PatentTitleYear
5,209,832'Process for the preparation of metal complex dyes'1993D0333313'Magnifying glass'19935,153,140'Process for controlling and optimising industrial processes for the preparation of dyes, fluorescent whitening agents and their intermediates'19925,011,587'Apparatus for the detection of chemical equalization processes in an aqueous solution'19914,673,249'Drive for a prismatic compensator'19874,529,264'Device for sharp-edge illumination of an observation field lying in a preselectable plane'19854,353,424'Slash gathering vehicle'19824,264,121'Binocular telescope'19814,264,122'Binocular observation instrument'19814,182,791'Process for making a composite body'19804,073,364'Stabilized vehicle suspension'19783,990,483'Weaving shuttle'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1980Based in Borken, DE· patent location history
1978Patents assigned to GARRETT WELDCO IND INC (1)· patent assignee history
1978–1982Based in Enumclaw, WA, US· patent location history
1980–1982Patents assigned to SCHMIDT WILHELM (2)· patent assignee history
1981–1987Patents assigned to ZEISS STIFTUNG (4)· patent assignee history
1981Based in Aalen, DE· patent location history
1985–1993Based in Rainau, DE· patent location history
1991–1993Patents assigned to CIBA GEIGY CORP (3)· patent assignee history
1991–1993Based in Lorrach, DE· patent location history
1993Patents assigned to CARL ZEISS STIFTUNG HEIDENHEIM/BRENZ (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ZEISS STIFTUNG | 4 | 1981–1987 |
| CIBA GEIGY CORP | 3 | 1991–1993 |
| SCHMIDT WILHELMself | 2 | 1980–1982 |
| CARL ZEISS STIFTUNG HEIDENHEIM/BRENZ | 1 | 1993 |
| GARRETT WELDCO IND INC | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lorrach, DE | 3 | 1991–1993 |
| Rainau, DE | 3 | 1985–1993 |
| Enumclaw, Washington, US | 2 | 1978–1982 |
| Aalen, DE | 2 | 1981 |
| Borken, DE | 2 | 1976–1980 |