For the Inventor, By the Inventor

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Reinach, Switzerland

Crown Cork Ag

USPTO Granted Patents = 15

CIPO Patents = 5

Forward Citations = 403

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13 inventors (with patents filed for the assignee):

Michael Kirchgessner (11 out of 11 patents)

Udo Bosl (6 out of 8 patents)

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: Sort by Forward Citations

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),

Crown Cork AG is a leading supplier of packaging products and solutions worldwide. With over 125 years of experience, the company offers innovative packaging solutions for various industries including beverage, food, beauty, and healthcare. Crown Cork AG is committed to sustainability and continuously strives to reduce its environmental impact through innovative packaging technologies and materials.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

15 Patents

#12 in Reinach

#775 in Switzerland

#38,743 in the World

Reinach, Switzerland

Crown Cork Ag

Forward Citations = 403

13 inventors:

Michael Kirchgessner (11 out of 11 patents)

Udo Bosl (6 out of 8 patents)

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)

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