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SONDERHOFF ERNST FA

Overview
  • Total Patents
    19
About

SONDERHOFF ERNST FA has a total of 19 patent applications. Its first patent ever was published in 1967. It filed its patents most often in Germany, EPO (European Patent Office) and Canada. Its main competitors in its focus markets macromolecular chemistry and polymers, machines and basic materials chemistry are LIWANG CHEMICAL NANTONG CO LTD, WILLIAMS DAVID J and BOSTIK AUSTRALIA PTY LTD.

Patent filings in countries

World map showing SONDERHOFF ERNST FAs patent filings in countries
# Country Total Patents
#1 Germany 10
#2 EPO (European Patent Office) 7
#3 Canada 2

Patent filings per year

Chart showing SONDERHOFF ERNST FAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Giesen Franz-Josef 11
#2 Silckerodt Werner 4
#3 Westhoff Heinz 2
#4 Link Alfred Dr 1
#5 Richard Jorg 1
#6 Schmidt Manfred 1
#7 Teichmann Manfred 1
#8 Langerbeins Klaus 1
#9 Langerbeins Klaus Dr 1
#10 Giesen Franz Josef 1

Latest patents

Publication Filing date Title
DE19737685A1 Shielding gasket
DE19546451A1 Two-component polyurethane adhesive precuring to flexible film and curing to tough bond
EP0743348A1 Screw cap gasket for airtight packed products, especially food, and process for its production
EP0733672A1 Method of manufacturing a (foamed) soft elastic silicone elastomer, especially for sealing purposes
EP0691365A1 Process for the preparation of foamed or non-foamed silicone elastomers, especially for sealing
DE4235639A1 Process for the production of silicone foam molded parts by injection molding
DE4235638A1 Process for producing a fine-pored silicone foam
EP0470387A1 Thermally curable one-component polyurethane composition, particularly for use as castable or sprayable sealing composition
DE4101884A1 Process for the production of foam coatings or for surface bonding of materials and its use
DE3929081A1 METHOD FOR FOAMING A SILICONE MATERIAL, ESPECIALLY FOR FORMING SOFT-ELASTIC SILICONE FOAM GASKETS AND THE LIKE.
DE2203730A1 Sheet metal containers prodn - using single component polyurethane prepolymer as sealant for base and lid
DE1957827A1 Polyurethane foams for sealing steel drums - vats, cans, etc
DE1808821A1 Sealing composition for container lids
DE1594266A1 Lid sealing for the packaging industry