Inventor

Bernhard Hess

Inventor

Moers, DE

Overview

15→

Patents

1976–1994

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

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

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds37%

C08LCompositions of macromolecular compounds30%

C07DHeterocyclic compounds7%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

B62DMotor vehicles4%

C08JWorking-up4%

G11BInformation storage based on relative movement between record carrier and transducer4%

H01BCables4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

5,334,692'Highly branched polyphosphonates based on melamine'1994 5,286,831'At least substantially pore-free polyurethane molding compounds'1994 5,194,334'Process for the production of sheet metal/duroplast composite elements'1993 5,145,920'Oligomer epoxy resins based on cyclohexyldiphenol derivatives and reaction products thereof with (meth)acrylic acid and diisocyanates'1992 5,081,269'Oligomer epoxy resins based on cyclohexyldiphenol derivatives and reaction products thereof with (meth)acrylic acid and diisocyanates'1992 4,961,179'Curable reaction compositions for producing data carriers'1990 4,806,603'Polyester resin compositions which can be hardened with little shrinkage'1989 4,595,725'Unsaturated polyester resins, a process for their production and their use for the production of molding compositions'1986 4,413,072'Mixtures of polyurethanes and unsaturated polyester resins'1983 4,222,927'Dispersions of powders in unsaturated polyesters'1980 4,163,093'Process for the production of polyesters for air-drying unsaturated polyester resins'1979 4,100,224'Stable organic dispersions which can be cured with little shrinkage, based on unsaturated polyester resins and thermoplastic polymers'1978 4,079,024'Free-flowing unsaturated polyester moulding compositions hardenable with very little shrinkage'1978 4,051,085'Hardenable moulding compositions containing a thermoplastic polymer a copolymerizable vinyl compound and a polyesterurethane'1977 3,940,350'Moulding compositions based on unsaturated polyesters, copolymerisable vinyl monomers and cellulose esters'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1994Patents assigned to BAYER AG (14)· patent assignee history

1976Based in Kapellen-Drusweiler, DE· patent location history

1977–1994Based in Moers, DE· patent location history

1993Patents assigned to DSM NV (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	14	1976–1994
DSM NV	1	1993

Locations

Location	Patents	Span
Moers, DE	14	1977–1994
Kapellen-Drusweiler, DE	1	1976