Inventor

Horst Zaschke

Inventor

Halle, DE

Overview

27→

Patents

1982–1999

Patent span

Chemistry

Primary field (CPC C)

Patents· 27 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 elsewhere54%

C07DHeterocyclic compounds24%

C07CAcyclic or carbocyclic compounds10%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%

PatentTitleYear

5,998,563'Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof'1999 5,824,377'Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof'1998 4,961,876'Liquid crystalline ferroelectric derivatives of branched acyclic alpha-chlorocarboxylic acids'1990 4,952,699'Liquid-crystalline, 2,5-disubstituted, 1,3,4-thiadiazoles with extended smectic C phases'1990 4,874,544'Ferroelectric liquid crystals'1989 4,734,217'Liquid crystalline 2,6-disubstituted-trans-1,3-dioxadecalins'1988 4,668,426'Liquid crystalline substances'1987 4,626,375'Liquid crystalline substances'1986 4,615,824'Mixing component for liquid crystal substances'1986 4,610,805'Nematic liquid crystal mixtures'1986 4,601,846'Liquid crystal substances for the guest-host effect'1986 4,597,892'Liquid crystalline 2-substituted-5-(1-alkyl-piperid-4-yl)-1,3-dioxanes'1986 4,585,576'Liquid-crystal nematic substances'1986 4,565,881'Liquid crystal substituted 1,3-dioxanes and mixtures containing them'1986 4,560,496'Liquid crystalline nematic compounds'1985 4,521,327'Nematic liquid crystals and method for production thereof'1985 4,486,332'Liquid crystalline nematic substances'1984 4,438,268'Liquid crystal substances'1984 4,421,670'Liquid crystal dihydrophenanthrene substances'1983 4,363,767'Esters of 4-[2,2-dicyano-ethenyl]-phenols'1982 4,358,393'Nematic liquid crystals of 5-cyano-2-[4-acyloxyphenyl]-pyrimidines and mixtures containing the same'1982 4,358,589'Nematic liquid crystal compounds'1982 4,356,103'Liquid crystals for electro-optical devices'1982 4,348,324'Liquid crystalline substituted 1,3-dioxanes and mixtures containing these'1982 4,348,298'Nematic liquid crystal mixtures'1982 4,344,856'Crystalline-liquid substituted 1,3-dioxanes and mixtures containing them'1982 4,311,610'Liquid crystalline 5-alkyl-2 (4-acyloxy-phenyl)-pyrimidine'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1990Patents assigned to WERK FERNSEHELEKTRONIK VEB (22)· patent assignee history

1982–1990Based in Halle, DE· patent location history

1984–1985Patents assigned to DEMUS DIETRICH (2)· patent assignee history

1984–1985Patents assigned to ZASCHKE HORST (2)· patent assignee history

1985Patents assigned to ALTMANN HEINZ (1)· patent assignee history

1998–1999Patents assigned to LG ELECTRONICS INC (2)· patent assignee history

1998–1999Based in Holle, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WERK FERNSEHELEKTRONIK VEB	22	1982–1990
DEMUS DIETRICH	2	1984–1985
LG ELECTRONICS INC	2	1998–1999
ZASCHKE HORSTself	2	1984–1985
ALTMANN HEINZ	1	1985

Locations

Location	Patents	Span
Halle, DE	25	1982–1990
Holle, DE	2	1998–1999