For the Inventor, By the Inventor

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Carlsbad, CA, United States of America

Ef Composite Technologies, L.p.

USPTO Granted Patents = 14

% Expired Patents = 21.4

Trademarks = 3

Forward Citations = 64

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7 inventors (with patents filed for the assignee):

Rafael G Filippini (12 out of 17 patents)

Ronald Alan Grimes (2 out of 2 patents)

Raymond L Mortvedt (2 out of 9 patents)

4. Tim Doyle (1 out of 1 patent)

5. Thomas W Travers (1 out of 1 patent)

6. Christopher Crowther (1 out of 1 patent)

7. Todd B Colburn (1 out of 3 patents)

14 patents: Sort by Forward Citations

1. 8834306 - Racquet with elongated grommet barrels (2014-09-16),

2. 7144341 - Sports racquet with deflection enhancing string bed (2006-12-05),

3. 7140985 - Stringing indicia for sports racquets (2006-11-28),

4. 7097576 - String bearing assemblies for sports racquets (2006-08-29),

5. 7077768 - Composite racquet with double tube head frame (2006-07-18),

6. 6958104 - Sports racket with undulations in frame interior surface (2005-10-25),

7. 6935974 - Racquet strung with bypass string pattern (2005-08-30),

8. 6852048 - Guiding and vibration dampening string tubes for sports racquets (2005-02-08),

9. 6796916 - Sports racquet with deflection enhancing string bed (2004-09-28),

10. 6764417 - Racquet strung with bypass string pattern (2004-07-20),

11. D476386 - String-enclosing tubes for a sports racquet (2003-06-25),

12. 6447412 - Sports racket with undulations in frame interior surface (2002-09-10),

13. 6062994 - Reinforced racquet with flat string bed (2000-05-16),

14. 5919104 - Long string racquets, particularly for racquetball (1999-07-06),

EF Composite Technologies, L.P. is a leading manufacturer of advanced composite products for aerospace, defense, and industrial applications. With state-of-the-art facilities and a team of skilled engineers, EF Composite Technologies is known for its high-quality, lightweight, and durable composite materials.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

14 Patents

#89 in Carlsbad, CA

#5,313 in California

#22,289 in US

#42,168 in the World

Carlsbad, CA, United States of America

Ef Composite Technologies, L.p.

Forward Citations = 64

7 inventors:

Rafael G Filippini (12 out of 17 patents)

Ronald Alan Grimes (2 out of 2 patents)

Raymond L Mortvedt (2 out of 9 patents)

4. Tim Doyle (1 out of 1 patent)

5. Thomas W Travers (1 out of 1 patent)

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