Inventor
Wolfgang Weissflog
Inventor
Halle, DE
Overview
Patents· 10 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 elsewhere53%
C07DHeterocyclic compounds12%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein12%
C07CAcyclic or carbocyclic compounds6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
C08JWorking-up6%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management6%
PatentTitleYear
9,273,247'Substituted amino alcohols as chiral dopants'20165,357,006'Preparation of recyclate polyols, and the use thereof in the preparation of polyurethanes'19944,961,876'Liquid crystalline ferroelectric derivatives of branched acyclic alpha-chlorocarboxylic acids'19904,874,544'Ferroelectric liquid crystals'19894,565,881'Liquid crystal substituted 1,3-dioxanes and mixtures containing them'19864,519,936'Nematic liquid crystals and method of production'19854,363,767'Esters of 4-[2,2-dicyano-ethenyl]-phenols'19824,348,324'Liquid crystalline substituted 1,3-dioxanes and mixtures containing these'19824,344,856'Crystalline-liquid substituted 1,3-dioxanes and mixtures containing them'19824,099,856'Nematic liquid crystalline substances'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1990Patents assigned to WERK FERNSEHELEKTRONIK VEB (7)· patent assignee history
1978Based in Wiener Neustadt, AT· patent location history
1982–2016Based in Halle, DE· patent location history
1982–1990Based in Halle-Neustadt, DD· patent location history
1986Patents assigned to WERK FUER FERNSEHDEKTRONIK IM (1)· patent assignee history
1994Patents assigned to BASF SCHWARZHEIDE GMBH (1)· patent assignee history
2016Patents assigned to FRAUNHOFER GES FORSCHUNG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WERK FERNSEHELEKTRONIK VEB | 7 | 1978–1990 |
| BASF SCHWARZHEIDE GMBH | 1 | 1994 |
| FRAUNHOFER GES FORSCHUNG | 1 | 2016 |
| WERK FUER FERNSEHDEKTRONIK IM | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Halle, DE | 5 | 1982–2016 |
| Halle-Neustadt, DD | 4 | 1982–1990 |
| Wiener Neustadt, AT | 1 | 1978 |