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For the Inventor, By the Inventor

Solon, OH, United States of America

The Robbins Company


USPTO Granted Patents = 41

% Expired Patents = 12.2



Forward Citations = 500

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41 inventors (with patents filed for the assignee):

goldMedal Carl E Lenaburg (8 out of 8 patents)

silverMedal David B Sugden (6 out of 17 patents)

bronzeMedal Richard J Robbins (5 out of 5 patents)

4.  Llewellan Anderson (4 out of 8 patents)

5.  David T Cass (4 out of 5 patents)

6.  John Turner (4 out of 7 patents)

7.  Thomas C Whitehouse (3 out of 3 patents)

8.  Tyman H Fikse (3 out of 12 patents)

9.  Ross D Galbraith (2 out of 2 patents)

10.  Stephen M Smading (2 out of 2 patents)

11.  Aaron J Shanahan (2 out of 2 patents)

12.  Brian B Khalighi (2 out of 2 patents)

13.  Peter B Dowden (2 out of 2 patents)

14.  Hans A Adami (2 out of 2 patents)

15.  Carlo Grandori (2 out of 2 patents)


Core Competencies:
Cutter Housing
Tunnel Boring Machine
Clamped-Ring Cutter
Down Reaming Apparatus
Cutter Assembly
Mobile Mining Machine
Drilling Equipment
Excavator
Rotary Cutterhead
Boring Apparatus
Continuous Forward Propulsion
Earth Boring

41 patents:

1. 10539017 - Cutter housing with field-replaceable seats (2020-01-21),
2. 10480318 - Cutter housing with inline mounting (2019-11-19),
3. 10208597 - Cutter disc with set back teeth for tunnel boring machine (2019-02-19),
4. 10018042 - Clamped-ring cutter assembly for tunnel boring machine (2018-07-10),
5. 9845677 - Cutter assembly with inline mounting (2017-12-19),
6. 9010872 - Tunnel boring machine with cutterhead support assembly supporting a variable number of drive systems (2015-04-21),
7. 8783786 - Cutter assembly for tunnel boring machine with pressure compensation (2014-07-22),
8. 8172334 - Apparatus and method for monitoring tunnel boring efficiency (2012-05-08),
9. 7832960 - All-conditions tunnel boring machine (2010-11-16),
10. 6955232 - Equipment for drilling vertical boreholes (2005-10-18),
11. 6390287 - Self-adjusting carrying idler assembly (2002-05-21),
12. 5429198 - Down reaming apparatus having hydraulically controlled stabilizer (1995-07-04),
13. 5370194 - Drive head assembly for drilling machine (1994-12-06),
14. 5325932 - Down reaming apparatus (1994-07-05),
15. 5308150 - Down reaming apparatus (1994-05-03),
Company Overview
The Robbins Company, headquartered in Solon, Ohio, specializes in the design and manufacturing of advanced tunneling and mining equipment. Renowned for its innovative tunnel boring machines and cutter assemblies, the company plays a pivotal role in underground construction and resource extraction. Its technology portfolio includes mobile mining machines, earth boring apparatus, and hydraulically controlled stabilizers, all aimed at enhancing efficiency and safety in challenging environments. Robbins continues to lead in the development of solutions for continuous forward propulsion and gantry-type mining machines.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

The Robbins Company USPTO Patent Assignee Logo
41 Patents

#9 in Solon, OH

#358 in Ohio

#8,433 in US

#16,686 in the World

Solon, OH (US)
Solon, OH, United States of America

The Robbins Company

Forward Citations = 500

41 inventors:

goldMedal Carl E Lenaburg (8 out of 8 patents)

silverMedal David B Sugden (6 out of 17 patents)

bronzeMedal Richard J Robbins (5 out of 5 patents)

4.  Llewellan Anderson (4 out of 8 patents)

5.  David T Cass (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Robbins Company. Retrieved from https://idiyas.com/company/robbins-company

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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