For the Inventor, By the Inventor

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Duesseldorf, Germany

Desowag-bayer Holzschutz Gmbh

USPTO Granted Patents = 2

Forward Citations = 14

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5 inventors (with patents filed for the assignee):

Wolfgang Metzner (2 out of 10 patents)

Hubert Koddebusch (1 out of 1 patent)

Volker Hellwig (1 out of 1 patent)

4. Reiner Pospischil (1 out of 1 patent)

5. Siegfried Cymorek (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4750934 - Composition or concentrate for conserving wood and wood materials (1988-06-14),

2. 4041176 - Preservative composition for wood and wood building materials and method (1977-08-09),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#35 in Duesseldorf

#10,495 in Germany

Duesseldorf, Germany

Desowag-bayer Holzschutz Gmbh

Forward Citations = 14

5 inventors:

Wolfgang Metzner (2 out of 10 patents)

Hubert Koddebusch (1 out of 1 patent)

Volker Hellwig (1 out of 1 patent)

4. Reiner Pospischil (1 out of 1 patent)

5. Siegfried Cymorek (1 out of 1 patent)

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