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For the Inventor, By the Inventor

Lexington, KY, United States of America

Clark Material Handling Company

Calculating rank
USPTO Granted Patents = 14

Trademarks = 19

Forward Citations = 206

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17 inventors (with patents filed for the assignee):

goldMedal Clark C Simpson (8 out of 11 patents)

silverMedal Lonnie R Oxley (2 out of 10 patents)

bronzeMedal Jack L Shafe (2 out of 2 patents)

4.  Arun K Seksaria (1 out of 1 patent)

5.  William C Jones, Jr (1 out of 1 patent)

6.  Jeffrey C Hansell (1 out of 6 patents)

7.  John Hodgman (1 out of 1 patent)

8.  Allan M Wesche (1 out of 1 patent)

9.  Tom W Hill (1 out of 1 patent)

10.  Bryan S Memmott (1 out of 1 patent)

11.  Jeffery C Hansell (1 out of 1 patent)

12.  Ronald L Weber (1 out of 1 patent)

13.  Jack O Rocco (1 out of 1 patent)

14.  James J Connerley (1 out of 4 patents)

15.  Kevin W Craven (1 out of 1 patent)


14 patents:

1. 9878887 - Upright for a lift truck (2018-01-30),
2. 9873601 - Hybrid forklift truck (2018-01-23),
3. 8833523 - Upright for a lift truck (2014-09-16),
4. 8434598 - Carpet pole carriage assembly (2013-05-07),
5. 6112612 - Multi function single lever control for lift trucks (2000-09-05),
6. D374126 - Industrial equipment seat (1996-10-01),
7. 5399059 - Overhead support frame assembly for vehicle (1995-03-21),
8. 5374156 - Carriage assembly and side shift system for a lift truck (1994-12-20),
9. 5357935 - Internal combustion engine with induction fuel system having an engine (1994-10-25),
10. 5330031 - Alternative fuel system for powered industrial vehicle (1994-07-19),
11. 5326217 - Lift truck with negative drop upright (1994-07-05),
12. 5320197 - Sextuple upright (1994-06-14),
13. 5201629 - Container transporter (1993-04-13),
14. D332164 - Container transporter vehicle body (1992-12-29),
Company Overview
Clark Material Handling Company, headquartered in Lexington, KY, specializes in the design and manufacture of material handling equipment, including forklifts and related products. With a strong focus on innovation, the company develops advanced technologies to enhance operational efficiency and safety in various industries. Clark's commitment to quality and customer satisfaction has established it as a key player in the material handling sector, serving clients across North America and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

14 Patents

#9 in Lexington, KY

#93 in Kentucky

#22,344 in US

#42,312 in the World

Lexington, KY (US)
Lexington, KY, United States of America

Clark Material Handling Company

Forward Citations = 206

17 inventors:

goldMedal Clark C Simpson (8 out of 11 patents)

silverMedal Lonnie R Oxley (2 out of 10 patents)

bronzeMedal Jack L Shafe (2 out of 2 patents)

4.  Arun K Seksaria (1 out of 1 patent)

5.  William C Jones, Jr (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Clark Material Handling Company. Retrieved from https://idiyas.com/company/clark-material-handling-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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