For the Inventor, By the Inventor

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San Diego, CA, United States of America

Ektelon

USPTO Granted Patents = 12

Forward Citations = 93

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11 inventors (with patents filed for the assignee):

Raymond L Mortvedt (6 out of 9 patents)

John Francis Lorentzen (2 out of 47 patents)

Todd B Colburn (2 out of 3 patents)

4. Steven M Thompson (2 out of 2 patents)

5. Ray Mortvedt (1 out of 1 patent)

6. Franklin W Held (1 out of 1 patent)

7. Franklin R Held (1 out of 1 patent)

8. Stephen M Thompson (1 out of 3 patents)

9. Warren M Bosworth, Jr (1 out of 3 patents)

10. Fred E Martin (1 out of 1 patent)

11. Ronald G Zech (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5568921 - Racquet stringing machine (1996-10-29),

2. 5470061 - Racquetball racquet having increased stiffness at tip (1995-11-28),

3. 4874170 - String clamp for racquet stringing machine (1989-10-17),

4. 4684131 - Graphite composite racquet with aramid core (1987-08-04),

5. D290487 - Racquetball racquet (1987-06-23),

6. 4618148 - Racquetball racquet with increased hitting area (1986-10-21),

7. 4579343 - Graphite composite racquet (1986-04-01),

8. 4561655 - Tubular steel racquet frame having varying cross-section (1985-12-31),

9. 4546977 - Racquet stringing machine with improved racquet retaining standard (1985-10-15),

10. 4531738 - Racquetball racquet with increased hitting area (1985-07-30),

11. 4290604 - Racquetball racquet having a metal frame meshable with a throat piece (1981-09-22),

12. 4130619 - Apparatus and method of making hollow articles (1978-12-19),

Ektelon is a leading manufacturer of high-quality racquetball equipment and apparel. With a strong focus on innovation and performance, Ektelon has been a trusted brand among racquetball players for over 50 years. Their products are designed to enhance the game of players at every level, from beginners to professional athletes.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#447 in San Diego, CA

#6,055 in California

#25,526 in US

#48,090 in the World

San Diego, CA, United States of America

Ektelon

Forward Citations = 93

11 inventors:

Raymond L Mortvedt (6 out of 9 patents)

John Francis Lorentzen (2 out of 47 patents)

Todd B Colburn (2 out of 3 patents)

4. Steven M Thompson (2 out of 2 patents)

5. Ray Mortvedt (1 out of 1 patent)

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