% Expired Patents = 33.3

Forward Citations = 113

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4 inventors (with patents filed for the assignee):

Willy Kussel (8 out of 21 patents)

Willi Kussel (1 out of 11 patents)

Frank Reiner (1 out of 1 patent)

4. Rolf Beils (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 6983926 - Valve arrangement for hydraulic consumer (2006-01-10),

2. 6978679 - Hydraulic pressure sensor (2005-12-27),

3. 6877277 - Coupling for explosion-proof connection of two electric line ends (2005-04-12),

4. 6535771 - Extraction controller for mining—extraction machines (2003-03-18),

5. 6509842 - Control system for a longwall support (2003-01-21),

6. 6481802 - Control system for longwall face alignment (2002-11-19),

7. 6375154 - Seat and holding valve (2002-04-23),

8. 6361119 - Mining control system for adjusting the advance of mining tools (2002-03-26),

9. 6263913 - Hydraulic multiway valve (2001-07-24),

Company Overview

Tiefenbach Bergbautechnik GmbH is a leading manufacturer of heavy-duty construction and mining equipment. With a history spanning over 50 years, the company is known for its high-quality products and innovative solutions. Tiefenbach's equipment is used in various industries, including mining, tunneling, and construction, and is known for its durability and reliability. The company's commitment to excellence and customer satisfaction has earned them a reputation as a trusted partner in the industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#46 in Essen

#4,072 in Germany

Essen, Germany

Tiefenbach Bergbautechnik Gmbh

Forward Citations = 113

4 inventors:

Willy Kussel (8 out of 21 patents)

Willi Kussel (1 out of 11 patents)

Frank Reiner (1 out of 1 patent)

4. Rolf Beils (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tiefenbach Bergbautechnik Gmbh. Retrieved from https://idiyas.com/company/tiefenbach-bergbautechnik

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]