For the Inventor, By the Inventor

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Milwaukee, WI, United States of America

Kelley Company, Inc.

USPTO Granted Patents = 113

% Expired Patents = 2.7

CIPO Patents = 1

Trademarks = 17

Forward Citations = 2,497

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57 inventors (with patents filed for the assignee):

Martin P Hageman (20 out of 20 patents)

Charles Harwood Hodges (14 out of 14 patents)

Douglas H Massey (11 out of 16 patents)

4. Kjell I Erlandsson (9 out of 10 patents)

5. Robert J Warner (8 out of 8 patents)

6. Thomas J Palus (6 out of 6 patents)

7. Thomas G Artzberger (6 out of 25 patents)

8. Mark A Bennett (6 out of 6 patents)

9. William B Weishar (5 out of 9 patents)

10. Jack L Sherard (4 out of 4 patents)

11. Jonathan W Kovach (4 out of 4 patents)

12. William C Eungard (3 out of 17 patents)

13. Ben Fritz (3 out of 3 patents)

14. Donald G Roth (3 out of 3 patents)

15. Loren K Styba (3 out of 4 patents)

Core Competencies:

Dock Levelers

Vehicle Restraints

Industrial Doors

Inflatable Members

Wheel Chocking Devices

Curtains for Vehicle Shelters

Safety Gates

Hydraulic Mechanisms

Powered Systems

Roll-Up Doors

Dock Seals

Support Mechanisms

113 patents: Sort by Forward Citations

1. 6910239 - Dock leveler having an inflatable member (2005-06-28),

2. 6820295 - Support leg moving apparatus and method (2004-11-23),

3. 6760944 - Dock leveler having an inflatable member (2004-07-13),

4. 6711774 - Dock leveler having an inflatable member (2004-03-30),

5. 6643880 - Dock leveler (2003-11-11),

6. 6629328 - Universal lip lifting device (2003-10-07),

7. 6585211 - Wheel chocking device and method for using the same (2003-07-01),

8. 6478525 - Wheel chocking device and method for using the same (2002-11-12),

9. 6460212 - Dock leveler having an inflatable member (2002-10-08),

10. 6431252 - Curtain for a vehicle shelter and method for making the same (2002-08-13),

11. 6374554 - Vehicle shelter (2002-04-23),

12. 6371714 - Vehicle restraint and method for modifying the same (2002-04-16),

13. 6360393 - Method for converting a dock leveler to a dock leveler operated with an inflatable member and a dock leveler produced by the same (2002-03-26),

14. 6357987 - Powered wheel chock with folding supports (2002-03-19),

15. 6317914 - Dockleveler holdown mechanism and method for installing the same (2001-11-20),

Company Overview

Kelley Company, Inc., headquartered in Milwaukee, WI, specializes in the development and manufacturing of advanced dock levelers and related safety equipment. The company focuses on innovative solutions such as vehicle restraints, industrial doors, inflatable members, and wheel chocking devices, enhancing operational efficiency and safety in loading dock environments. With a commitment to quality and performance, Kelley Company serves a diverse range of industries, providing essential products that facilitate safe and effective material handling.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

113 Patents

#19 in Milwaukee, WI

#73 in Wisconsin

#3,408 in US

#7,007 in the World

Milwaukee, WI, United States of America

Kelley Company, Inc.

Forward Citations = 2,497

57 inventors:

Martin P Hageman (20 out of 20 patents)

Charles Harwood Hodges (14 out of 14 patents)

Douglas H Massey (11 out of 16 patents)

4. Kjell I Erlandsson (9 out of 10 patents)

5. Robert J Warner (8 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kelley Company, Inc.. Retrieved from https://idiyas.com/company/kelley-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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