Inventor

Gunther Maahs

Inventor

Marl, DE

Overview

1979–1986

Patent span

Chemistry

Primary field (CPC C)

Patents· 12 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds31%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients25%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds19%

C01BNon-metallic elements6%

C07DHeterocyclic compounds6%

C09KMaterials for miscellaneous applications, not provided for elsewhere6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

4,582,941'Process for producing squaric acid'1986 4,567,220'Production of copper(II) hydroxide phosphate with a light natural color and an average grain size less than 10 microns'1986 4,537,924'Quadratic acid amide derivatives, their use as stabilizers, and synthetic resins treated therewith'1985 4,390,654'Vinyl chloride polymer flameproofed and smoke inhibited with a copper phosphate'1983 4,361,686'Preparation of copolymers of ethylene with at least one other 1-monoolefin and an optional unconjugated diene'1982 4,297,505'Process for the preparation of pentachloro-3-butenoic acid esters'1981 4,272,633'Process for the manufacture of tetrachlorocyclobutenone from hexachlorocyclobutene'1981 4,265,806'Flame retardant thermoplastic synthetic resin'1981 4,245,113'Process for the manufacture of 2,3,4,4-tetrachloro-3-butenoic acid esters'1981 4,200,703'Process for the manufacture of heat-stable, nuclear-brominated polystyrenes'1980 4,181,790'Copolymerization of ethylene employing an organic chlorine compound-activated Ziegler-Natta catalyst'1980 4,175,095'Process for the manufacture of pentachlorovinylacetyl chloride'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1986Patents assigned to HUELS CHEMISCHE WERKE AG (12)· patent assignee history

1979–1986Based in Marl, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HUELS CHEMISCHE WERKE AG	12	1979–1986

Locations

Location	Patents	Span
Marl, DE	12	1979–1986