For the Inventor, By the Inventor

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Gretna, LA, United States of America

Kob, Inc.

USPTO Granted Patents = 5

EPO Patents = 12

Trademarks = 3

Forward Citations = 9

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7 inventors (with patents filed for the assignee):

Reginald J Barrus (2 out of 2 patents)

Donald J Barrus (2 out of 2 patents)

John W Owensby (2 out of 2 patents)

4. Theodore A Kritikos (2 out of 2 patents)

5. Guenter Langen (1 out of 2 patents)

6. Martin Bier (1 out of 1 patent)

7. Andre Panten, Sr (1 out of 1 patent)

8. Marita Meister (4 patents)

9. Günter Langen (3 patents)

10. Hannes Weiland (1 patent)

11. Gabriele Brandt (1 patent)

12. Elisabetta Birmelin (1 patent)

13. Sebastian Camerer (2 patents)

14. Uwe Ludwig (1 patent)

15. Pulkit Mishra (0 patent)

5 patents: Sort by Forward Citations

1. 12465526 - Bandage imprint (2025-11-11),

2. 12343918 - Method for coating a textile hose with a thermoplastic sealing material (2025-07-01),

3. 11813365 - Pasty preparation for forming a semirigid dressing (2023-11-14),

4. 5253704 - High pressure automatic mud saver valve (1993-10-19),

5. 4969513 - High pressure automatic kelly valve (1990-11-13),

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USPTO Data Jan 1 1976 - Jan 6 2026

5 Patents

#1 in Gretna, LA

#181 in Louisiana

#50,255 in US

Gretna, LA, United States of America

Kob, Inc.

Forward Citations = 9

7 inventors:

Reginald J Barrus (2 out of 2 patents)

Donald J Barrus (2 out of 2 patents)

John W Owensby (2 out of 2 patents)

4. Theodore A Kritikos (2 out of 2 patents)

5. Guenter Langen (1 out of 2 patents)

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