% Expired Patents = 60.0

Trademarks = 3

Forward Citations = 139

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2 inventors (with patents filed for the assignee):

Jack Hetherington (4 out of 4 patents)

Michael Hetherington (3 out of 5 patents)

5 patents: Sort by Forward Citations

1. 8065951 - Servo-controlled tipping platform and motion control system therefor (2011-11-29),

2. 7602376 - Moving dielectric, capacitive position sensor configurations (2009-10-13),

3. 7489144 - Low-cost linear and liquid position transducers (2009-02-10),

4. 7394051 - Image-based tracking system for model train control (2008-07-01),

5. 6888076 - Substantially rigid capacitive joystick designs (2005-05-03),

P.i. Engineering, Inc. is a leading manufacturer of custom input devices and keyboards. With a focus on quality and innovation, the company offers a wide range of products for various industries including gaming, industrial automation, and medical. Their key strengths lie in their ability to provide tailored solutions to meet the unique needs of their customers.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

5 Patents

#3 in Williamston, MI

#1,722 in Michigan

#51,545 in US

Williamston, MI, United States of America

P.i. Engineering, Inc.

Forward Citations = 139

2 inventors:

Jack Hetherington (4 out of 4 patents)

Michael Hetherington (3 out of 5 patents)

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