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For the Inventor, By the Inventor

Butzbach, Germany

Bwg Butzbacher Weichenbau Gmbh

Calculating rank
USPTO Granted Patents = 19

Forward Citations = 70

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16 inventors (with patents filed for the assignee):

goldMedal Erich Nuding (15 out of 16 patents)

silverMedal Sebastian Benenowski (14 out of 18 patents)

bronzeMedal Alfred Kais (10 out of 13 patents)

4.  Hubertus Hohne (5 out of 6 patents)

5.  Hans-Ulrich Dietze (4 out of 11 patents)

6.  Albrecht Demmig (3 out of 5 patents)

7.  Gerhard Ratz (2 out of 4 patents)

8.  Rudiger Ziethen (2 out of 2 patents)

9.  Fridbert Heinze (1 out of 3 patents)

10.  Walter Kunitz (1 out of 3 patents)

11.  Stefan Schmedders (1 out of 4 patents)

12.  Friedhelm Floter (1 out of 1 patent)

13.  Ruediger Ziethen (1 out of 1 patent)

14.  Friedhelm Wojtek (1 out of 1 patent)

15.  Wilhelm Heller (1 out of 10 patents)


19 patents:

1. 6177205 - Process for producing a permanent way component and such a component (2001-01-23),
2. 6068196 - Expansion joint for part of a railway track (2000-05-30),
3. 6062144 - Method and means for the elastic bending of a support for a flexible (2000-05-16),
4. 6027034 - Superstructure construction (2000-02-22),
5. 5647280 - Rail line, in particular for a high-speed magnetic train (1997-07-15),
6. 5645216 - Bearing for a part of a railroad track (1997-07-08),
7. 5605281 - Rail support system (1997-02-25),
8. 5590833 - Expansion joint for part of a railway track (1997-01-07),
9. 5582108 - Rail junction (1996-12-10),
10. 5522570 - Rail section (1996-06-04),
11. 5482576 - Railway-track elements and method of manufacturing them (1996-01-09),
12. 5451018 - Railway tongue and rail juncture (1995-09-19),
13. 5390881 - Roller assembly for a switch tongue used with a stock rail (1995-02-21),
14. 5295624 - Contact surfaces of a track part and railway wheel (1994-03-22),
15. 5222700 - Device for locking a switch blade (1993-06-29),
Company Overview
Bwg Butzbacher Weichenbau GmbH specializes in the development and manufacturing of railway switch systems and related components. The company is recognized for its expertise in railway technology, focusing on innovative solutions that enhance the safety and efficiency of rail transport. With a strong presence in Europe, Bwg Butzbacher Weichenbau GmbH is committed to advancing railway infrastructure through high-quality engineering and a dedication to research and development in the field of transportation technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

19 Patents

#1 in Butzbach

#2,296 in Germany

#32,705 in the World

Butzbach, DE
Butzbach, Germany

Bwg Butzbacher Weichenbau Gmbh

Forward Citations = 70

16 inventors:

goldMedal Erich Nuding (15 out of 16 patents)

silverMedal Sebastian Benenowski (14 out of 18 patents)

bronzeMedal Alfred Kais (10 out of 13 patents)

4.  Hubertus Hohne (5 out of 6 patents)

5.  Hans-Ulrich Dietze (4 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bwg Butzbacher Weichenbau Gmbh. Retrieved from https://idiyas.com/company/bwg-butzbacher-weichenbau

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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