Inventor

Helmut Eschwey

Inventor
Gorxheimertal, DE

Overview

13→
Patents
1976–1995
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 as inventor

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

C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers20%
Y10TTechnical subjects covered by former us classification17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds14%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds9%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients9%
C08LCompositions of macromolecular compounds9%
D04HMaking textile fabrics, e.g. from fibres or filamentary material6%
A61FFilters implantable into blood vessels3%
A61LMethods or apparatus for sterilising materials or objects in general3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to BASF AG (2)· patent assignee history
1976Based in Merzhausen, DE· patent location history
1979–1982Patents assigned to HENKEL KGAA (8)· patent assignee history
1979–1982Based in Odenthal, DE· patent location history
1980–1981Based in Dusseldorf-Benrath, DE· patent location history
1982Based in Michelstadt, DE· patent location history
1990Patents assigned to FREUDENBERG CARL FA (2)· patent assignee history
1990–1995Based in Gorxheimertal, DE· patent location history
1995Patents assigned to FREUDENBERG CARL (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HENKEL KGAA81979–1982
BASF AG21976
FREUDENBERG CARL FA21990
FREUDENBERG CARL11995
Locations
LocationPatentsSpan
Gorxheimertal, DE31990–1995
Odenthal, DE31979–1982
Dusseldorf-Benrath, DE31980–1981
Merzhausen, DE21976
Michelstadt, DE11982