Inventor

Walter Uerdingen

Inventor

Leverkusen, DE

Overview

39→

Patents

1977–1999

Patent span

Chemistry

Primary field (CPC C)

Patents· 39 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 bonds26%

C08LCompositions of macromolecular compounds15%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

Y10TTechnical subjects covered by former us classification8%

C07DHeterocyclic compounds7%

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

C07CAcyclic or carbocyclic compounds4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%

C08JWorking-up3%

PatentTitleYear

5,958,596'Composite material'1999 5,382,625'Thermoplastic moulding compositions with high notched impact strength'1995 5,194,334'Process for the production of sheet metal/duroplast composite elements'1993 5,124,382'Blends of polyarylene sulfides, epoxides, anhydrides, glass fibers and optionally other fillers'1992 5,102,929'Mixtures of polyarylene sulphides, glass fibres and heterocyclic nitroaryloxy compounds'1992 5,064,884'Blends of polyarylene sulfides, epoxides, glass fibers, optionally anhydride-containing polymers and optionally other additives'1991 5,055,345'Multilayer composite material'1991 4,961,179'Curable reaction compositions for producing data carriers'1990 4,812,589'Polyhydroxyl compounds containing a sulfonic acid ester group'1989 4,788,224'Two stage process for the production of molded articles'1988 4,728,676'Thermosetting reactive resin mixtures and a process for the production of moldings using these mixtures'1988 4,720,519'Process for the production of non-foamed moldings'1988 4,690,998'Special epoxy resins'1987 4,689,376'Heat-hardenable epoxide resin mixtures'1987 4,683,267'Thermoplastic moulding compounds based on polyoxymethylene and polymeric adipatecarbonate mixed esters'1987 4,666,980'Transparent moulding compositions'1987 4,657,976'Moulding compositions of vinyl chloride polymers, graft polymers and polymeric plasticizers having a high resistance to ageing'1987 4,533,728'Process for the production of high molecular weight polyester carbonates'1985 4,522,964'Polymer powders containing graft polymer'1985 4,518,515'Moulding compositions of vinyl chloride polymers, graft polymers and polymeric plasticizers having a high resistance to ageing'1985 4,518,743'Moulding compositions of vinyl chloride polymers, certain copolymers and polymeric plasticisers having a high resistance to ageing'1985 4,511,695'Soft polymer alloys'1985 4,506,045'Cellulose ester-aliphatic polycarbonate thermoplastic moulding compositions'1985 4,404,379'Cycloaminals and a process for their preparation'1983 4,382,114'Method of producing metal effect lacquerings and sheets treated with weather-resistant multicoat metal effect lacquerings'1983 4,324,879'Process for the preparation of polyisocyanates containing isocyanurate groups and the use thereof'1982 4,324,590'Fixatives for dentistry and their use'1982 4,296,230'Polyurethane coatings produced from (1) a polyisocyanate mixture of polyisocyanates from the diphenol methane series and a polyhydroxy polyether containing at least one tertiary amine nitrogen with (2) a polyol in a two component coating system'1981 4,289,813'Process for coating solvent-free lacquers'1981 4,247,689'Preparation of isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines]'1981 4,242,489'Process for preparing polyurethanes'1980 4,228,815'Measurement and control of multicomponent liquid systems'1980 4,228,683'Method of determining liquid flow in a conduit'1980 4,173,567'Isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines]'1979 4,150,213'Process for the production of polyisocyanate polyaddition products which comprises reacting organic polyisocyanates, polycyclic condensation products of formaldehyde with diamines, and water'1979 4,137,389'Low-molecular weight acrylate resins and a process for their production'1979 4,124,569'Process for the preparation of polyisocyanates containing urethane and biuret groups'1978 4,113,705'Triisocyanates useful for the production of polyurethane resins'1978 4,045,462'Bicyclic triisocyanates'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1999Patents assigned to BAYER AG (37)· patent assignee history

1977–1980Based in Schildgen, DT· patent location history

1978–1983Based in Bergisch Gladbach, DE· patent location history

1979–1999Based in Leverkusen, DE· patent location history

1991Patents assigned to KOEHLER BURKHARD (1)· patent assignee history

1991Patents assigned to REINKING KLAUS (1)· patent assignee history

1991Patents assigned to SCHAEFER WALTER (1)· patent assignee 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	37	1977–1999
DSM NV	1	1993
KOEHLER BURKHARD	1	1991
REINKING KLAUS	1	1991
SCHAEFER WALTER	1	1991

Locations

Location	Patents	Span
Leverkusen, DE	30	1979–1999
Bergisch Gladbach, DE	6	1978–1983
Schildgen, DT	3	1977–1980