For the Inventor, By the Inventor

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Pulheim, Germany

Rpc Wiko Gmbh

USPTO Granted Patents = 3

Forward Citations = 17

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6 inventors (with patents filed for the assignee):

Wolfgang Heukamp (3 out of 11 patents)

Hans-Joachim Ahrens (1 out of 3 patents)

Roland Knauer (1 out of 1 patent)

4. Frank Rauch (1 out of 1 patent)

5. Stephan Porzelt (1 out of 1 patent)

6. Barbara Kösske (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 7757900 - Dispenser pump (2010-07-20),

2. 7475436 - Dispenser stick (2009-01-13),

3. 7464839 - Dispenser head with a check valve (2008-12-16),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#2 in Pulheim

#8,304 in Germany

Pulheim, Germany

Rpc Wiko Gmbh

Forward Citations = 17

6 inventors:

Wolfgang Heukamp (3 out of 11 patents)

Hans-Joachim Ahrens (1 out of 3 patents)

Roland Knauer (1 out of 1 patent)

4. Frank Rauch (1 out of 1 patent)

5. Stephan Porzelt (1 out of 1 patent)

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