Inventor

Horst Kresse

Inventor

Halle, DE

Overview

9→

Patents

1978–1990

Patent span

Chemistry

Primary field (CPC C)

Patents· 9 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 elsewhere69%

C07CAcyclic or carbocyclic compounds15%

C07DHeterocyclic compounds8%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%

PatentTitleYear

4,952,699'Liquid-crystalline, 2,5-disubstituted, 1,3,4-thiadiazoles with extended smectic C phases'1990 4,565,881'Liquid crystal substituted 1,3-dioxanes and mixtures containing them'1986 4,519,936'Nematic liquid crystals and method of production'1985 4,490,278'Liquid crystal substituted trans-4-n-alkylcyclohexanes and subst.-3-subst.-benzoyloxy-[trans-4-n-alkylcyclohexane]s'1984 4,363,767'Esters of 4-[2,2-dicyano-ethenyl]-phenols'1982 4,348,324'Liquid crystalline substituted 1,3-dioxanes and mixtures containing these'1982 4,344,856'Crystalline-liquid substituted 1,3-dioxanes and mixtures containing them'1982 4,293,434'Liquid crystal compounds'1981 4,099,856'Nematic liquid crystalline substances'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1990Patents assigned to WERK FERNSEHELEKTRONIK VEB (7)· patent assignee history

1978–1990Based in Halle, DE· patent location history

1984Patents assigned to ALTMANN HEINZ (1)· patent assignee history

1984Patents assigned to BOETTGER UTE (1)· patent assignee history

1984Patents assigned to DEMUS DIETRICH (1)· patent assignee history

1984Patents assigned to DEUTSCHER HANS JOACHIM (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
ALTMANN HEINZ	1	1984
BOETTGER UTE	1	1984
DEMUS DIETRICH	1	1984
DEUTSCHER HANS JOACHIM	1	1984

Locations

Location	Patents	Span
Halle, DE	9	1978–1990