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For the Inventor, By the Inventor

South Milwaukee, WI, United States of America

Bucyrus International Inc.


USPTO Granted Patents = 19

% Expired Patents = 5.3



Trademarks = 2

Forward Citations = 445

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30 inventors (with patents filed for the assignee):

goldMedal Carl Delbert Gilmore (6 out of 22 patents)

silverMedal Lane Colin Hobenshield (3 out of 6 patents)

bronzeMedal Steven Michael Casey (3 out of 4 patents)

4.  Robert F Brown, Jr (3 out of 3 patents)

5.  David T Bienfang (2 out of 15 patents)

6.  Michael G Onsager (2 out of 8 patents)

7.  Bret A Tarnowski (2 out of 2 patents)

8.  Erwin Mock (2 out of 2 patents)

9.  John K Luvaas (1 out of 7 patents)

10.  Gregory N Feld (1 out of 4 patents)

11.  Joseph Helfrich (1 out of 4 patents)

12.  Walter Koellner (1 out of 4 patents)

13.  Nathaniel A Falendysz (1 out of 1 patent)

14.  Russell J Kroll (1 out of 43 patents)

15.  Timothy R Kerrigan (1 out of 1 patent)


19 patents:

1. 8362629 - Energy management system for heavy equipment (2013-01-29),
2. 8342236 - Blast hole drill bit carousel and a blast hole drill including a blast hole drill bit carousel (2013-01-01),
3. D645046 - Joystick with indents (2011-09-13),
4. 7975760 - Tool wrench assembly (2011-07-12),
5. D640258 - Joystick (2011-06-21),
6. D614674 - Excavator cab (2010-04-27),
7. 7174826 - Hydraulic crowd control mechanism for a mining shovel (2007-02-13),
8. 7096610 - Dipper assembly including a closure mechanism (2006-08-29),
9. 7024805 - Dragline excavating machine with direct drive hoist and drag drums (2006-04-11),
10. 6752282 - Swing drive assembly (2004-06-22),
11. 6591521 - Dipper door and dipper door assembly (2003-07-15),
12. 6467202 - Dynamically active dipper door mechanism (2002-10-22),
13. 6317957 - Method for fabricating an excavator base (2001-11-20),
14. 6168542 - Crowd rope take-up system for mining shovel (2001-01-02),
15. 6047775 - Blast hole drill pipe gripping mechanism (2000-04-11),
Company Overview
Bucyrus International Inc. is a prominent manufacturer specializing in heavy mining equipment and machinery. The company is known for its innovative solutions in the mining sector, focusing on the design and production of surface and underground mining equipment. With a strong emphasis on engineering excellence, Bucyrus develops advanced technologies that enhance operational efficiency and safety in mining operations. Headquartered in South Milwaukee, Wisconsin, Bucyrus serves a global market, contributing significantly to the mining industry's evolution.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

19 Patents

#2 in South Milwaukee, WI

#401 in Wisconsin

#17,150 in US

#32,693 in the World

South Milwaukee, WI (US)
South Milwaukee, WI, United States of America

Bucyrus International Inc.

Forward Citations = 445

30 inventors:

goldMedal Carl Delbert Gilmore (6 out of 22 patents)

silverMedal Lane Colin Hobenshield (3 out of 6 patents)

bronzeMedal Steven Michael Casey (3 out of 4 patents)

4.  Robert F Brown, Jr (3 out of 3 patents)

5.  David T Bienfang (2 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bucyrus International Inc.. Retrieved from https://idiyas.com/company/bucyrus-international

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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