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For the Inventor, By the Inventor

Reinach, Switzerland

Crown Cork Ag

Calculating rank
USPTO Granted Patents = 15


Forward Citations = 423

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13 inventors (with patents filed for the assignee):

goldMedal Michael Kirchgessner (11 out of 11 patents)

silverMedal Udo Bosl (6 out of 8 patents)

bronzeMedal Franz T Bartl (3 out of 4 patents)

4.  Georg Pfefferkorn (2 out of 5 patents)

5.  Klaus-Jurgen Herrmann (2 out of 2 patents)

6.  Hans-Werner Breuer (2 out of 9 patents)

7.  Gunter Wustmann (1 out of 1 patent)

8.  Thomas Bartl (1 out of 1 patent)

9.  Herwig Janousch (1 out of 1 patent)

10.  Kelvin Pitman (1 out of 11 patents)

11.  George Pfefferkorn (1 out of 1 patent)

12.  Richard Jauslin (1 out of 1 patent)

13.  Lino Dreyer (1 out of 2 patents)

14.  Franz Thomas Bartl (0 patent)


15 patents:

1. 6116451 - Screw cap with anti-tamper strip (2000-09-12),
2. 6116444 - Plastic closure cap (2000-09-12),
3. 6006930 - Bottle finish and closure cap with double screw thread (1999-12-28),
4. 5893474 - Screw cap with anti-tamper strip (1999-04-13),
5. 5871111 - Screwable closure cap with security against over-tightening (1999-02-16),
6. 5848717 - Snap-on seal arrangement on a container (1998-12-15),
7. 5836468 - Plastic snap closure with anti-tamper strip and method of its manufacture (1998-11-17),
8. 5803286 - Plastic closure cap with early venting inner seal (1998-09-08),
9. 5775527 - Closure cap with anti-tamper strip (1998-07-07),
10. 5725115 - Closure cap with tether (1998-03-10),
11. 5715959 - Closure cap with anti-tamper ring (1998-02-10),
12. 5248050 - Cap having expandable guarantee strip (1993-09-28),
13. 5197621 - Screw cap made of plastics material (1993-03-30),
14. 5074425 - Plastic closure cap (1991-12-24),
15. 4784280 - Sealing cap with a safety band (1988-11-15),
Company Overview
Crown Cork Ag, headquartered in Reinach, Switzerland, specializes in the development and manufacturing of innovative packaging solutions. The company is recognized for its expertise in metal packaging, particularly for beverages and food products. With a strong focus on sustainability and efficiency, Crown Cork Ag leverages advanced technologies to enhance product performance and reduce environmental impact. Its commitment to quality and innovation positions it as a leader in the global packaging industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

15 Patents

#12 in Reinach

#806 in Switzerland

#39,991 in the World

Reinach, CH
Reinach, Switzerland

Crown Cork Ag

Forward Citations = 423

13 inventors:

goldMedal Michael Kirchgessner (11 out of 11 patents)

silverMedal Udo Bosl (6 out of 8 patents)

bronzeMedal Franz T Bartl (3 out of 4 patents)

4.  Georg Pfefferkorn (2 out of 5 patents)

5.  Klaus-Jurgen Herrmann (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Crown Cork Ag. Retrieved from https://idiyas.com/company/crown-cork-ag

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]
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