For the Inventor, By the Inventor

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Waukesha, WI, United States of America

Husco International, Inc.

USPTO Granted Patents = 126

% Expired Patents = 50.8

EPO Patents = 3

Trademarks = 5

Forward Citations = 2,288

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75 inventors (with patents filed for the assignee):

Joseph Lawrence Pfaff (32 out of 38 patents)

Dwight B Stephenson (22 out of 50 patents)

Raud A Wilke (14 out of 18 patents)

4. Keith A Tabor (13 out of 18 patents)

5. Eric P Hamkins (13 out of 15 patents)

6. Dennis R Barber (10 out of 10 patents)

7. David Schedgick (8 out of 8 patents)

8. Michael J Paik (8 out of 8 patents)

9. Xiaolong Yang (6 out of 6 patents)

10. Jason Greenwood (5 out of 5 patents)

11. Corey Quinnell (5 out of 5 patents)

12. Michael C Layne (5 out of 8 patents)

13. Leif Pedersen (4 out of 5 patents)

14. Gary J Pieper (4 out of 4 patents)

15. Edward Aloysius Flynn (4 out of 8 patents)

Core Competencies:

Hydraulic Control Systems

Electrohydraulic Valves

Regeneration Techniques

Pressure Compensation

Hydraulic Pump

Fluid Flow Management

Vehicle Suspension

Load Leveling

Pilot Operated Valves

Dynamic Scaling

Pressure Regulating Valves

Hydraulic Actuators

126 patents: Sort by Forward Citations

1. 12631201 - Variable relief circuit (2026-05-19),

2. 11920326 - Systems and methods for determining control capabilities on an off-highway vehicle (2024-03-05),

3. 11761466 - Hydraulic control systems and methods using multi-function dynamic scaling (2023-09-19),

4. 11549525 - Electronically adjustable pressure compensated flow control with pressure limiting relief valve (2023-01-10),

5. 11415154 - Hydraulic systems and methods for nested pressure regulating valves (2022-08-16),

6. 10947996 - Systems and methods for selective enablement of hydraulic operation (2021-03-16),

7. 10443758 - Systems and methods for electrohydraulic valve calibration (2019-10-15),

8. 10268214 - Systems and methods for electrohydraulic valve calibration (2019-04-23),

9. 10125750 - Radial piston pump assemblies and use thereof in hydraulic circuits (2018-11-13),

10. 10072679 - Systems and methods for selectively engaged regeneration of a hydraulic system (2018-09-11),

11. 10072678 - Regeneration deactivation valve and method (2018-09-11),

12. 9752597 - Metered fluid source connection to downstream functions in PCLS systems (2017-09-05),

13. 9476432 - Hydraulic valve assembly with tank return flow compensation (2016-10-25),

14. 9303387 - Hydraulic system with open loop electrohydraulic pressure compensation (2016-04-05),

15. 9133605 - Flow sensing based variable pump control technique in a hydraulic system with open center control valves (2015-09-15),

Company Overview

Husco International, Inc., based in Waukesha, Wisconsin, specializes in advanced hydraulic control systems that enhance vehicle performance and efficiency. The company focuses on developing innovative electrohydraulic valves and regeneration techniques, which optimize fluid flow management and pressure compensation in various applications. Husco's expertise extends to vehicle suspension and load leveling technologies, positioning it as a key player in the automotive and industrial sectors, committed to delivering cutting-edge solutions for modern engineering challenges.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

126 Patents

#2 in Waukesha, WI

#64 in Wisconsin

#3,078 in US

#6,358 in the World

Waukesha, WI, United States of America

Husco International, Inc.

Forward Citations = 2,288

75 inventors:

Joseph Lawrence Pfaff (32 out of 38 patents)

Dwight B Stephenson (22 out of 50 patents)

Raud A Wilke (14 out of 18 patents)

4. Keith A Tabor (13 out of 18 patents)

5. Eric P Hamkins (13 out of 15 patents)

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