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Solingen, Germany

C. Rob. Hammerstein Gmbh & Co Kg

Calculating rank

USPTO Granted Patents = 122

% Expired Patents = 40.2

EPO Patents = 7

Forward Citations = 1,156

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90 inventors (with patents filed for the assignee):

Burckhard Becker (68 out of 104 patents)

Wilfried Beneker (54 out of 59 patents)

Ernst-Reiner Frohnhaus (14 out of 39 patents)

4. Robert Houston (13 out of 15 patents)

5. Burkhard Becker (10 out of 13 patents)

6. Heinz Bauer (9 out of 31 patents)

7. Reinhard Vogel (8 out of 9 patents)

8. Antal Teer (6 out of 11 patents)

9. Ulrich Karthaus (6 out of 8 patents)

10. Van-Toan Ho (5 out of 8 patents)

11. Nils Magnus (5 out of 9 patents)

12. Robert Landskron (4 out of 6 patents)

13. Axel Speck (4 out of 4 patents)

14. Daniel Urban (4 out of 5 patents)

15. Wilhelm Wingensiefen (4 out of 6 patents)

Core Competencies:

Adjustment Device

Motor Vehicle Seat

Hinge Mounting

Seat Frame

Electric Actuator

Spindle Drive

Height Adjustment

Longitudinal Guide

Seat Depth Adjustment

Underframe

Locking Device

Clamping Roller

122 patents: Sort by Forward Citations

1. 9956596 - Method and device for producing a sliding rail of a longitudinal adjustment device of a vehicle seat (2018-05-01),

2. 9676298 - Longitudinal adjustment device for a motor vehicle seat, comprising two pairs of rails (2017-06-13),

3. 9623768 - Holding device for an adjustment drive of a motor vehicle seat (2017-04-18),

4. 9561739 - Method and attachment element for mounting a vehicle seat (2017-02-07),

5. 9546716 - Adjusting drive and method for producing an adjusting drive (2017-01-17),

6. 9545861 - Method and device for producing a locking device and locking device for a longitudinal adjustment mechanism of a vehicle seat (2017-01-17),

7. 9533610 - Seat frame of a motor vehicle seat with two side parts and a transverse tube (2017-01-03),

8. 9499071 - Adjusting device for a motor vehicle seat, comprising at least one stop (2016-11-22),

9. 9387777 - Seat underframe for motor vehicle seats (2016-07-12),

10. 9358902 - Holding device for an adjustment drive of a motor vehicle seat (2016-06-07),

11. 9315117 - Method for producing a spindle drive of an adjustment device of a motor vehicle seat (2016-04-19),

12. 9260038 - Floor lock for a motor vehicle seat (2016-02-16),

13. 9242579 - Seat rail for a motor vehicle seat (2016-01-26),

14. 9227532 - Seat fitting for a motor vehicle seat (2016-01-05),

15. 9150124 - Actuating unit of a motor vehicle seat (2015-10-06),

Company Overview

C. Rob. Hammerstein Gmbh & Co Kg, based in Solingen, Germany, specializes in the development and manufacturing of advanced motor vehicle seat technologies. The company focuses on innovative solutions such as adjustment devices, hinge mountings, and electric actuators, enhancing the functionality and comfort of automotive seating systems. With expertise in spindle drives and height adjustment mechanisms, Hammerstein plays a significant role in the automotive industry, contributing to the evolution of vehicle interior ergonomics and user experience.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

122 Patents

#1 in Solingen

#491 in Germany

#6,567 in the World

Solingen, Germany

C. Rob. Hammerstein Gmbh & Co Kg

Forward Citations = 1,156

90 inventors:

Burckhard Becker (68 out of 104 patents)

Wilfried Beneker (54 out of 59 patents)

Ernst-Reiner Frohnhaus (14 out of 39 patents)

4. Robert Houston (13 out of 15 patents)

5. Burkhard Becker (10 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: C. Rob. Hammerstein Gmbh & Co Kg. Retrieved from https://idiyas.com/company/c-rob-hammerstein-and-co-kg

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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