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USPTO Data Jan 1 1976 - Oct 20 2026
9 Patents
#1 in Kerpen
#4,072 in Germany
Boll & Kirch Filterbau Gmbh
Forward Citations = 109
13 inventors:
Boll & Kirch Filterbau Gmbh
% Expired Patents = 11.1
EPO Patents = 8
Trademarks = 3
Forward Citations = 109
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13 inventors (with patents filed for the assignee):
Rudiger Lennartz (5 out of 7 patents)
Willi Rott (4 out of 5 patents)
Karsten Cartarius (2 out of 2 patents)
4. Andreas Finsel (2 out of 2 patents)
5. Carsten Tietze (1 out of 1 patent)
6. Gerd Stahl (1 out of 1 patent)
7. Heinz Sindorf (1 out of 2 patents)
8. Heinz Heinrich Leonhard Sindorf (1 out of 1 patent)
9. Wilhelm Vieten (1 out of 2 patents)
10. Rüdiger Lennartz (1 out of 2 patents)
11. Sivagnanam Kandiah (1 out of 2 patents)
12. Ingo Romey (1 out of 24 patents)
13. Joachim Gutermuth (1 out of 1 patent)
14. Stefan Schmitz (1 patent)
15. Robert Jellinggaard (1 patent)
9 patents:
Company Overview
Boll & Kirch Filterbau GmbH is a leading global filtration technology company that specializes in the design and manufacturing of high-quality filters for various industries, including oil and gas, marine, power generation, and chemical processing. With over 70 years of experience, Boll & Kirch offers innovative filtration solutions that are reliable, efficient, and environmentally friendly.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Boll & Kirch Filterbau Gmbh. Retrieved from https://idiyas.com/company/boll-and-kirch-filterbau
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
8 patents (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]