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Saint Joseph, MI, United States of America

Shepherd Products, U.s., Inc.

USPTO Granted Patents = 25

Trademarks = 2

Forward Citations = 426

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17 inventors (with patents filed for the assignee):

Michael H Estkowski (10 out of 18 patents)

Christopher G Estkowski (8 out of 9 patents)

Jerome Carmel Caruso (4 out of 38 patents)

4. Robert M Shane (4 out of 4 patents)

5. Lennard V Lastuck (3 out of 3 patents)

6. Kenneth E Cooper (2 out of 2 patents)

7. Don E Minor (2 out of 3 patents)

8. Frederick C Greene (2 out of 3 patents)

9. G Norman Heaton (2 out of 3 patents)

10. John W Hogg (2 out of 2 patents)

11. Ludovic A Perl (2 out of 11 patents)

12. Michael Gaishin (1 out of 1 patent)

13. Loris Miotto (1 out of 2 patents)

14. Christopher F Estkowski (1 out of 1 patent)

15. John T Atwood (1 out of 1 patent)

Core Competencies:

Twin Wheel Caster

Brake Assembly

Chair Seat Tilt Control

Caster Bearing Assembly

Integral Retainer

Mechanical Device

Appliance Roller

Tilted Axle Caster

Electrically Conductive Caster

Protective Covering

Resiliently Mounted Caster

Multi-Wheel Bed Roller

25 patents: Sort by Forward Citations

1. 5415252 - Twin wheel caster and brake assembly (1995-05-16),

2. 5348371 - Mechanical device for use particularly for the synchronous movement of (1994-09-20),

3. 5276942 - Appliance roller (1994-01-11),

4. 5263238 - Method of forming a stem and assembling a snap ring in a groove in the (1993-11-23),

5. 5232265 - Vertical back adjust for chairs (1993-08-03),

6. 5230571 - Caster bearing assembly (1993-07-27),

7. 5226739 - Integral retainer and bearing assembly (1993-07-13),

8. 5068943 - Dual wheel tilted axle caster with an integral retainer and bearing (1991-12-03),

9. D321299 - Chair base (1991-11-05),

10. 5018787 - Chair seat tilt control (1991-05-28),

11. D312011 - Chair base (1990-11-13),

12. D308815 - Caster with arcurate hood cover (1990-06-26),

13. 4916801 - Method of forming a stem with a groove and a snap ring (1990-04-17),

14. 4892354 - Chair seat tilt control (1990-01-09),

15. D304399 - Chair base with casters (1989-11-07),

Company Overview

Shepherd Products, U.S., Inc. is a company based in Saint Joseph, Michigan, specializing in the development and manufacturing of innovative solutions for various industries. The organization focuses on creating high-quality products that enhance operational efficiency and safety. With a commitment to research and technology, Shepherd Products engages in the design of advanced materials and systems, catering to the needs of its clients across diverse sectors. Their expertise spans multiple domains, ensuring a robust approach to product development and customer satisfaction.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

25 Patents

#2 in Saint Joseph, MI

#483 in Michigan

#13,364 in US

#25,710 in the World

Saint Joseph, MI, United States of America

Shepherd Products, U.s., Inc.

Forward Citations = 426

17 inventors:

Michael H Estkowski (10 out of 18 patents)

Christopher G Estkowski (8 out of 9 patents)

Jerome Carmel Caruso (4 out of 38 patents)

4. Robert M Shane (4 out of 4 patents)

5. Lennard V Lastuck (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shepherd Products, U.s., Inc.. Retrieved from https://idiyas.com/company/shepherd-products-u-s

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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