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Wilhelm Thoma
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Berg.Neukirchen, DT
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Patents Grants
last 30 patents
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Patent Grant
Polyurethane-ureas based on cis-trans-1,4-diaminocyclohexane
Patent number
RE29623
Issue date
May 2, 1978
Bayer Aktiengesellschaft
Harald Oertel
260 - Chemistry of carbon compounds
Information
Patent Grant
Soft textile coatings resembling napa leather
Patent number
4,035,213
Issue date
Jul 12, 1977
Bayer Aktiengesellschaft
Wilhelm Thoma
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Polyurethane urea elastomers based on polycarbonate macrodiols
Patent number
RE29224
Issue date
May 17, 1977
Bayer Aktiengesellschaft
Josef Pedain
260 - Chemistry of carbon compounds
Information
Patent Grant
Polyurethane coated textile sheets
Patent number
3,984,607
Issue date
Oct 5, 1976
Bayer Aktiengesellschaft
Wilhelm Thoma
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Process for the production of basic modified polyamides
Patent number
3,932,366
Issue date
Jan 13, 1976
Bayer Aktiengesellschaft
Wilhelm Thoma
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...