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For the Inventor, By the Inventor

Oklahoma City, OK, United States of America

Cmi Limited


USPTO Granted Patents = 82


Trademarks = 12

Forward Citations = 1,560

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59 inventors (with patents filed for the assignee):

goldMedal George W Swisher, Jr (35 out of 53 patents)

silverMedal Stuart W Murray (9 out of 10 patents)

bronzeMedal Murray A Rowe (8 out of 9 patents)

4.  David L Garbelman (6 out of 6 patents)

5.  Donald W Smith (6 out of 6 patents)

6.  Thomas L Steele (6 out of 8 patents)

7.  John F Phillips (5 out of 5 patents)

8.  Ewald R Ulmer (4 out of 6 patents)

9.  Jianmin Zhang (3 out of 3 patents)

10.  Don W Smith (3 out of 4 patents)

11.  Larry W Teel (3 out of 4 patents)

12.  Arthur G Shaw (3 out of 3 patents)

13.  Glen F Rosenbaum (3 out of 3 patents)

14.  Herbert E Jakob (2 out of 15 patents)

15.  Jerry R Collette (2 out of 13 patents)


Core Competencies:
Asphalt Mixing
Drum Mixer
Paving Machine
Concrete Finishing
Material Transfer
Vibrating Compactor
Infrared Analyzer
Road Planing
Dust Return
Thermal Remediation
Storage Silo
Aggregate Handling

82 patents:

1. D670339 - Divider assembly (2012-11-06),
2. D639334 - Headless bass guitar (2011-06-07),
3. D614724 - Trap (2010-04-27),
4. 7056066 - Apparatus and method for inserting sheet piles into a soil formation (2006-06-06),
5. D505736 - Fencing standard (2005-05-31),
6. 6340240 - Drum mixer having isolated aggregate transport channels (2002-01-22),
7. 6302265 - Fold-over conveyor assembly (2001-10-16),
8. 6267493 - Drum mixer having a plurality of isolated aggregate transport channels (2001-07-31),
9. 6234713 - Vibrator truss assembly (2001-05-22),
10. 6149342 - Anti-bridging mechanism (2000-11-21),
11. 6110430 - Decontamination plant including an indirectly heated desorption system (2000-08-29),
12. 5881959 - Materials grinder with infeed conveyor and anvil (1999-03-16),
13. 5827360 - Method and equipment for producing foam bitumen (1998-10-27),
14. 5791815 - Vibrating compactor assembly for use with a concrete finishing machine (1998-08-11),
15. 5788755 - Method and equipment for producing foam bitumen (1998-08-04),
Company Overview
Cmi Limited, based in Oklahoma City, specializes in advanced asphalt mixing technology, focusing on the development and manufacturing of equipment essential for road construction and maintenance. The company offers a range of products including drum mixers, paving machines, and material transfer devices, all designed to enhance efficiency and performance in asphalt applications. Additionally, Cmi Limited is involved in innovative solutions such as infrared analyzers and vibrating compactors, contributing to the evolution of road planing and concrete finishing technologies.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

82 Patents

#4 in Oklahoma City, OK, null

#21 in

#4,525 in US

#9,254 in the World

Oklahoma City, OK (US)
Oklahoma City, OK, United States of America

Cmi Limited

Forward Citations = 1,560

59 inventors:

goldMedal George W Swisher, Jr (35 out of 53 patents)

silverMedal Stuart W Murray (9 out of 10 patents)

bronzeMedal Murray A Rowe (8 out of 9 patents)

4.  David L Garbelman (6 out of 6 patents)

5.  Donald W Smith (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cmi Limited. Retrieved from https://idiyas.com/company/cmi

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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