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For the Inventor, By the Inventor

Tirschenreuth, Germany

Hamm Ag


USPTO Granted Patents = 123

% Expired Patents = 1.6


Trademarks = 3

Forward Citations = 849

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72 inventors (with patents filed for the assignee):

goldMedal Matthias Meier (31 out of 32 patents)

silverMedal Ulrich Ewringmann (23 out of 98 patents)

bronzeMedal Werner Völkel (13 out of 13 patents)

4.  Axel Römer (12 out of 12 patents)

5.  Gernot Reif (11 out of 11 patents)

6.  Axel Roemer (11 out of 11 patents)

7.  Detlef Bornemann (10 out of 10 patents)

8.  Gerd Köstler (10 out of 10 patents)

9.  Stefan Reber (10 out of 10 patents)

10.  Boris Eickhoff (10 out of 10 patents)

11.  Gerhard Mahler (9 out of 9 patents)

12.  Markus Beese (9 out of 9 patents)

13.  Ronny Pieske (8 out of 8 patents)

14.  Sebastian Villwock (8 out of 13 patents)

15.  Stefan Braunschläger (7 out of 7 patents)


Core Competencies:
Soil Compactor
Soil Roller
Ground Processing
Compaction State
Oscillation Module
Drive System
Construction Machine
Vibration Detection
Road Roller
Soil Preparation
Earth Working Roller
Compactor Roller

123 patents:

1. 12735848 - Ground processing roller (2026-09-15),
2. 12698609 - Wheel assembly for a soil compactor (2026-08-04),
3. 12612743 - Soil processing roller and method for operating a soil processing roller (2026-04-28),
4. 12590432 - Soil processing machine and method for operating a soil processing machine (2026-03-31),
5. 12577739 - Roller tool for a ground processing roller (2026-03-17),
6. 12577738 - Roller tool for a soil processing roller (2026-03-17),
7. 12565105 - Method for operating a soil processing machine (2026-03-03),
8. 12473026 - Method for operating a soil processing machine (2025-11-18),
9. 12410566 - Compactor roller for a soil compactor (2025-09-09),
10. 12376508 - Sheath for a soil working roller (2025-08-05),
11. 12370913 - Soil processing machine (2025-07-29),
12. 12331475 - Soil processing roller (2025-06-17),
13. 12296667 - Soil processing machine (2025-05-13),
14. 12188188 - Method for providing information related to the compaction state of a soil when performing a compaction operation with a soil compactor (2025-01-07),
15. 12110640 - Soil working roller for a soil processing machine (2024-10-08),
HAMM AG is a leading manufacturer of road construction and compaction equipment. With a rich history spanning over 140 years, HAMM AG has established itself as a trusted name in the industry. The company offers a diverse range of products including asphalt pavers, compactors, and tandem rollers. Through constant innovation and advanced technologies, HAMM AG strives to deliver reliable and efficient equipment to its global customers. Visit their website to explore their product portfolio and learn more about their commitment to quality and customer satisfaction.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Hamm Ag
123 Patents

#1 in Tirschenreuth

#484 in Germany

#6,490 in the World

Tirschenreuth, DE
Tirschenreuth, Germany

Hamm Ag

Forward Citations = 849

72 inventors:

goldMedal Matthias Meier (31 out of 32 patents)

silverMedal Ulrich Ewringmann (23 out of 98 patents)

bronzeMedal Werner Völkel (13 out of 13 patents)

4.  Axel Römer (12 out of 12 patents)

5.  Gernot Reif (11 out of 11 patents)

Please report any incorrect information to [email protected]
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