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For the Inventor, By the Inventor

Fresno, CA, United States of America

Keiser Corporation


USPTO Granted Patents = 15



Trademarks = 4

Forward Citations = 317

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2 inventors (with patents filed for the assignee):

goldMedal Dennis L Keiser (15 out of 20 patents)

silverMedal Wade A Peterson (1 out of 2 patents)


15 patents:

1. 8523789 - System for testing muscular power (2013-09-03),
2. 8323158 - Exercise apparatus using weight and pneumatic resistances (2012-12-04),
3. D659778 - Exercise bike (2012-05-15),
4. 8052584 - System and method for determining a resistance level for training a muscle group for maximum power generation (2011-11-08),
5. D643887 - Exercise bike (2011-08-23),
6. 7998038 - Exercise apparatus using weight and pneumatic resistances (2011-08-16),
7. 7955235 - Exercise apparatus (2011-06-07),
8. 7686749 - Exercise apparatus (2010-03-30),
9. D596680 - Exercise bike (2009-07-21),
10. D586409 - Exercise bike (2009-02-10),
11. 7331912 - Adjustable bench (2008-02-19),
12. 7172538 - Exercise apparatus (2007-02-06),
13. 6962554 - Exercising apparatus (2005-11-08),
14. 5526692 - Sensor (1996-06-18),
15. 4257593 - Pneumatic exercising device (1981-03-24),
Keiser Corporation is a leading manufacturer of fitness equipment, specializing in strength training and cardiovascular machines. With a commitment to innovation and quality, Keiser has revolutionized the fitness industry with their pneumatic resistance technology and personalized training solutions. Their equipment is used by professional athletes, physical therapy clinics, and fitness enthusiasts worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

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15 Patents

#7 in Fresno, CA

#4,868 in California

#20,409 in US

#38,699 in the World

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Fresno, CA, United States of America

Keiser Corporation

Forward Citations = 317

2 inventors:

goldMedal Dennis L Keiser (15 out of 20 patents)

silverMedal Wade A Peterson (1 out of 2 patents)

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