For the Inventor, By the Inventor

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Spirit Lake, IA, United States of America

Berkley Corporation

USPTO Granted Patents = 60

Trademarks = 29

Forward Citations = 471

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31 inventors (with patents filed for the assignee):

Steven L Grice (10 out of 12 patents)

James T Rumbaugh (7 out of 21 patents)

Steve Grice (7 out of 7 patents)

4. Brad J Benit (6 out of 8 patents)

5. Gary B Ader (5 out of 11 patents)

6. Lars-Olof Carlsson (4 out of 7 patents)

7. Bengt-ANGke Henriksson (4 out of 11 patents)

8. James T Rumbaugh (4 out of 4 patents)

9. Ronald Kliegl (4 out of 4 patents)

10. John A Prochnow (3 out of 4 patents)

11. Monte J Hoffmeyer (3 out of 3 patents)

12. Kurt Richards (2 out of 19 patents)

13. Roger B Cook (2 out of 3 patents)

14. Roger William Ylikangas (2 out of 2 patents)

15. Bradley J Benit (2 out of 3 patents)

Core Competencies:

Flavonoid Compositions

Fishing Reel

Golf Shaft

Fishing Rod

Graphite Fiber

Bait Casting

Spin Casting

Fish Attractant

Polyolefin Line

Reel Seat

Fishing Line Dispenser

Multi-Purpose Tool

60 patents: Sort by Forward Citations

1. 12274730 - Flavonoid compositions and methods of use (2025-04-14),

2. 11278740 - Temporary tattoo cover and related method (2022-03-22),

3. 10953064 - Flavonoid compositions and methods of use (2021-03-23),

4. 6151826 - Locked reel seat (2000-11-28),

5. 6148597 - Manufacture of polyolefin fishing line (2000-11-21),

6. 6109555 - Fishing reel and a method of braking the spool thereof with line tension (2000-08-29),

7. 6050513 - Reel with one piece gearbox shell (2000-04-18),

8. 5964056 - Graphite fiber fishing rod blank incorporating a non-woven (1999-10-12),

9. 5938542 - Golf shaft with bulge section (1999-08-17),

10. 5934588 - Fishing reel with centrifugal brake (1999-08-10),

11. 5915943 - Fishing rod with bulge (1999-06-29),

12. D401664 - Fishing reel frame (1998-11-24),

13. D401663 - Fishing reel foot (1998-11-24),

14. 5827551 - Fish attractant (1998-10-27),

15. D398700 - Fishing reel frame housing (1998-09-22),

Berkley Corporation, headquartered in Spirit Lake, Iowa, specializes in the development and manufacturing of high-quality fishing equipment. The company is renowned for its innovative products, including fishing reels, rods, and advanced bait casting technologies. Berkley is committed to enhancing the fishing experience through research in core technology areas such as flavonoid compositions and fish attractants, utilizing materials like graphite fiber to improve performance and durability. Its dedication to quality and innovation positions Berkley as a leader in the fishing industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

60 Patents

#1 in Spirit Lake, IA

#38 in Iowa

#5,991 in US

#12,071 in the World

Spirit Lake, IA, United States of America

Berkley Corporation

Forward Citations = 471

31 inventors:

Steven L Grice (10 out of 12 patents)

James T Rumbaugh (7 out of 21 patents)

Steve Grice (7 out of 7 patents)

4. Brad J Benit (6 out of 8 patents)

5. Gary B Ader (5 out of 11 patents)

Please report any incorrect information to [email protected]

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