Inventor

Gilbert Duperray

Inventor

Civrieux d'Azergues, FR

Overview

5→

Patents

1978–1993

Patent span

Performing operations

Primary field (CPC B)

Patents· 5 as inventor

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

Y10Tprimary

Y10TTechnical subjects covered by former us classification24%

B29BPreparation or pretreatment of the material to be shaped12%

B29CShaping or joining of plastics12%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts12%

B29LIndexing scheme associated with subclass b29c, relating to particular articles12%

C08JWorking-up12%

B05DProcesses for applying fluent materials to surfaces, in general6%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

C08LCompositions of macromolecular compounds6%

PatentTitleYear

5,242,976'Composition for improving adhesion of vinylidene polyfluoride and non-compatible polymeric resins'1993 5,112,692'Polyvinylidene fluoride composite and method'1992 5,019,444'Polyvinylidene fluoride products with a surface adapted to adhere to an incompatible polymer and process for treating the surface of a polyvinylidene fluoride material to enable it to adhere to an incompatible polymer'1991 4,267,237'Molded preformed polytetrafluoroethylene structures'1981 4,102,966'Method of molding polytetrafluoroethylene'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1981Patents assigned to UGINE KUHLMANN (2)· patent assignee history

1978–1981Based in Lozanne, FR· patent location history

1991–1993Patents assigned to ATOCHEM (3)· patent assignee history

1991Based in Marcilly d'Azergues, FR· patent location history

1992–1993Based in Civrieux d'Azergues, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ATOCHEM	3	1991–1993
UGINE KUHLMANN	2	1978–1981

Locations

Location	Patents	Span
Civrieux d'Azergues, FR	2	1992–1993
Lozanne, FR	2	1978–1981
Marcilly d'Azergues, FR	1	1991