Company Badge
USPTO Data Jan 1 1976 - Sep 29 2026
5 Patents
#2 in Frechen
#6,093 in Germany
Quarzwerke Gmbh
Forward Citations = 10
16 inventors:
Quarzwerke Gmbh
% Expired Patents = 20.0
CIPO Patents = 1
EPO Patents = 8
Trademarks = 8
Forward Citations = 10
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16 inventors (with patents filed for the assignee):
Jörg Ulrich Zilles (3 out of 3 patents)
Dirk Kruber (1 out of 1 patent)
Arno Seeboth (1 out of 5 patents)
4. Ralf Ruhmann (1 out of 9 patents)
5. Olaf Mühling (1 out of 3 patents)
6. Michael Riess (1 out of 1 patent)
7. Nicola Panic (1 out of 1 patent)
8. Norbert Fenten (1 out of 2 patents)
9. Wilfried Wolf (1 out of 1 patent)
10. Manfred Fischer (1 out of 1 patent)
11. Horst Peterling (1 out of 2 patents)
12. Klaus Keuser (1 out of 1 patent)
13. Johannes Kaiser (1 out of 1 patent)
14. Wilheim Wust (1 out of 1 patent)
15. Max Kellermann (1 out of 1 patent)
5 patents:
Quarzwerke GmbH is a leading supplier of high-quality industrial minerals. With over 130 years of experience, the company specializes in the extraction and processing of quartz, feldspar, and other minerals. Quarzwerke offers a wide range of products for various industries, including glass, ceramics, and construction. The company is known for its commitment to sustainability and environmental responsibility.
Profile summary based on public USPTO records.
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1 patent (CIPO):
Please report any incorrect information to [email protected]
8 patents (EPO):
Please report any incorrect information to [email protected]