Westborough, MA, United States of America

Paul E Litchfield

This inventor holds 93 USPTO granted patents and 5 published patent applications, plus 3 CIPO patents and 14 EPO patents, primarily in Footwear Technology (CPC class A43B13-20). Top assignees: Reebok International Limited, Mc10, Inc., Medidata Solutions, Inc.. Active years: 1989-2026.

USPTO Granted Patents = 93 (Patent Applications = 5)

% Patents Active = 92.5

CIPO Patents = 3 (Patent Applications = 1)

EPO Patents = 14 (Patent Applications = 7)

Average Co-Inventor Count = 3.9

ph-index = 41

Forward Citations = 4,426(Granted Patents)

Forward Citations (Not Self Cited) = 3,833(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Grafton, MA (US) (1989)
S. Cerafton, MA (US) (1994)
Cerafton, MA (US) (1995)
Worcester, MA (US) (1992 - 2003)
Canton, MA (US) (2006 - 2013)
Westborough, MA (US) (1998 - 2022)
Westboro, MA (US) (1996 - 2024)

Company Filing History:

91 out of 752

Reebok International Limited

Medidata Solutions, Inc.

patents

4. 1 out of 125

The Rockport Company, LLC

patents

5. 1 out of 834,307

Other

patents

where one patent can have more than one assignee

Years Active: 1989-2026

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Areas of Expertise:

Footwear

Inflatable Bladders

Pod Assembly

Molded Uppers

Training Footwear

Body Mounted Monitoring

Form-Fitting Articles

Smooth Shoe Uppers

Customization Methods

Shoe Sole

Support Structure

93 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12672696 - Sole and article of footwear having a pod assembly (2026-07-07),

2. D1036836 - Shoe (2024-07-30),

3. 12042011 - Molded footwear upper and method of making same (2024-07-23),

4. 12042006 - Sole and article of footwear having a pod assembly (2024-07-23),

5. 11612211 - Sole and article of footwear having a pod assembly (2023-03-28),

6. 11272755 - Sole and article of footwear having a pod assembly (2022-03-15),

7. 11029226 - Body mounted monitoring system and method (2021-06-08),

8. 10932519 - Sole and article of footwear having a pod assembly (2021-03-02),

9. D906655 - Shoe (2021-01-05),

10. 10499706 - Molded footwear upper and method of making same (2019-12-10),

11. 10391718 - Inflatable article of footwear or bladders for use in inflatable articles of manufacture (2019-08-27),

12. 10251450 - Shoe having an inflatable bladder (2019-04-09),

13. D838452 - Shoe (2019-01-22),

14. 10178891 - Sole and article of footwear having a pod assembly (2019-01-15),

15. 10034517 - Sole and article of footwear having a pod assembly (2018-07-31),

Title: The Innovative Journey of Paul E Litchfield

Introduction: Paul E Litchfield, a pioneering inventor hailing from Westboro, MA (US), has made significant contributions to the world of innovations and patents.

Latest Patents: Paul E Litchfield holds several patents in various fields, showcasing his diverse range of expertise and creativity.

Career Highlights: Throughout his illustrious career, Paul E Litchfield has been at the forefront of groundbreaking inventions, revolutionizing industries with his forward-thinking ideas and solutions.

Collaborations: Known for his collaborative spirit, Paul E Litchfield has worked with leading companies, research institutions, and universities to bring his inventions to life, fostering a culture of innovation and progress.

Conclusion: Paul E Litchfield's remarkable journey as an inventor has left an indelible mark on the world of patents and innovations, inspiring future generations to push the boundaries of what is possible.