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Iserlohn, Germany

Knebel & Rottger Gmbh & Co.

USPTO Granted Patents = 13

Forward Citations = 322

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10 inventors (with patents filed for the assignee):

Werner Knebel (3 out of 4 patents)

Gunter Sieberhagen (3 out of 3 patents)

Hans-Werner Mattis (2 out of 13 patents)

4. Wolfgang Heieck (2 out of 2 patents)

5. Norbert Ronzon (1 out of 3 patents)

6. Helmut Mols (1 out of 1 patent)

7. Werner Koch (1 out of 1 patent)

8. Peter Knebel (1 out of 1 patent)

9. Hans-Josef Sturm (1 out of 1 patent)

10. Karl-Erich Koch (1 out of 2 patents)

13 patents: Sort by Forward Citations

1. D344324 - Water faucet (1994-02-15),

2. D340279 - Controller for bathroom fixtures (1993-10-12),

3. 5165446 - Single-lever mixing valve (1992-11-24),

4. 5152308 - Method of operating a motor-controlled valve (1992-10-06),

5. D314040 - Faucet (1991-01-22),

6. D313837 - Faucet (1991-01-15),

7. 4784180 - Sanitary mixing valve assembly (1988-11-15),

8. 4700885 - Mixing valve for plumbing (1987-10-20),

9. 4694512 - Plumbing mixing circuit control apparatus for a combination set (1987-09-22),

10. 4693415 - Method and circuitry for control of a sanitary mixer for cold and hot (1987-09-15),

11. 4674678 - Mixing fixture for plumbing (1987-06-23),

12. 4667987 - Device for connecting pipes with fittings (1987-05-26),

13. D289545 - Handshower (1987-04-28),

Knebel & Rottger GmbH & Co. is a leading manufacturer of high-quality industrial products. With over 50 years of experience, we provide innovative solutions for various industries including automotive, aerospace, and electronics. Our products are known for their durability, precision, and reliability, ensuring customer satisfaction. Visit our website for more information.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

13 Patents

#7 in Iserlohn

#3,063 in Germany

#43,615 in the World

Iserlohn, Germany

Knebel & Rottger Gmbh & Co.

Forward Citations = 322

10 inventors:

Werner Knebel (3 out of 4 patents)

Gunter Sieberhagen (3 out of 3 patents)

Hans-Werner Mattis (2 out of 13 patents)

4. Wolfgang Heieck (2 out of 2 patents)

5. Norbert Ronzon (1 out of 3 patents)

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