Louis Lien

This inventor holds 42 USPTO granted patents and 1 published patent application, primarily in Fitness Equipment. Top assignee: USA Sports, Inc.. Active years: 2000-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Louis Lien. Retrieved from https://idiyas.com/inventor/louis-lien

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 42 (Patent Applications = 1)

% Patents Active = 97.6

Average Co-Inventor Count = 1.2

ph-index = 21

Forward Citations = 931(Granted Patents)

Location History:

Hou., TX (US) (2000)
Houston, TX (US) (2001 - 2010)
Bellaire, TX (US) (2001 - 2023)

Company Filing History:

40 out of 41

USA Sports, Inc.

patents

where one patent can have more than one assignee

Years Active: 2000-2026

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Areas of Expertise:

Dumbbell

Weight Plate

Exercise Rack

Foam Roller

Stability Ball

Curl Bench

Barbell Assembly

Med Ball Bouncer

Adjustable Dumbbells

Fitness Accessory

Weight Support

Core Ball

42 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D1154822 - Dumbbell (2026-10-20),

2. D983901 - Dumbbell plate (2023-04-18),

3. D962460 - Foam roller (2022-08-30),

4. D916509 - Yoga rack (2021-04-20),

5. D903369 - Stability ball rack (2020-12-01),

6. D882805 - Foam roller (2020-04-28),

7. D847920 - Exercise sled (2019-05-07),

8. D843518 - Curl bench (2019-03-19),

9. D818062 - Core ball (2018-05-15),

10. D802689 - Weight plate with hand grips (2017-11-14),

11. D801450 - Med ball bouncer (2017-10-31),

12. D798968 - Gripped weight plate (2017-10-03),

13. D786581 - Mu-rack (2017-05-16),

14. D740379 - Dumbbell (2015-10-06),

15. D739482 - Dumbbell (2015-09-22),

Title: Innovations of Louis Lien: A Journey of Patented Inventions

Introduction: Louis Lien, a prolific inventor based in Bellaire, TX, has made significant contributions to the world of sports and fitness through his innovative designs. With a remarkable portfolio of 41 patents, Lien showcases his dedication to enhancing athletic performance and improving workout experiences.

Latest Patents: Among his latest inventions are the dumbbell plate and the foam roller, both applications reflecting his commitment to providing effective tools for fitness enthusiasts. These patents emphasize functionality and design, catering to the needs of athletes and fitness lovers alike.

Career Highlights: Louis Lien is a key member of USA Sports, Inc., a company known for its commitment to delivering high-quality sports equipment. His work at USA Sports, Inc. has allowed him to apply his inventive skills within a dynamic industry, further enriching his experience and contributions.

Collaborations: Throughout his career, Louis has collaborated with talented individuals like Annie Wu and Robert E. Harms. These partnerships have not only fostered creativity but have also led to the development of innovative products that benefit athletes and fitness professionals.

Conclusion: Louis Lien's journey as an inventor is marked by his impressive number of patents and his collaborative efforts within the fitness industry. His latest inventions, particularly the dumbbell plate and foam roller, exemplify his passion for innovation and dedication to improving sports equipment. Lien continues to inspire the world of fitness with his inventive spirit.

Profile summary based on public USPTO records.

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]

1 patent pending: