For the Inventor, By the Inventor

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San Diego, CA, United States of America

Sperian Hearing Protection, LLC

USPTO Granted Patents = 13

EPO Patents = 4

Trademarks = 31

Forward Citations = 190

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11 inventors (with patents filed for the assignee):

Jim Tiemens (4 out of 11 patents)

Stephen D Gilder (4 out of 10 patents)

John Allen Jenkins, Jr (3 out of 8 patents)

4. David B Mulvey (2 out of 5 patents)

5. Kevin Michael (2 out of 3 patents)

6. Fredrik Hansson (1 out of 2 patents)

7. Jarle Svean (1 out of 10 patents)

8. Edwin Woo (1 out of 4 patents)

9. Larry Sanders (1 out of 1 patent)

10. Peter Franzen (1 out of 1 patent)

11. Per Olof Hiselius (1 out of 6 patents)

13 patents: Sort by Forward Citations

1. 8413331 - Earbud and method of manufacture (2013-04-09),

2. 8343397 - Method of forming an in-ear device (2013-01-01),

3. 8249266 - Filter system for hearing protection device for continuous noise exposure monitoring (2012-08-21),

4. 8189845 - Earbud coupling (2012-05-29),

5. 8061472 - Non-roll foam eartip (2011-11-22),

6. 7985468 - Foam ear plug or earpiece utilizing recycled pulverized polyurethane foam (2011-07-26),

7. 7978861 - Method and apparatus for continuous noise exposure monitoring (2011-07-12),

8. 7967015 - High resilience flanged earplug (2011-06-28),

9. D636484 - Earplug (2011-04-19),

10. 7766120 - Cap for use as hearing protection (2010-08-03),

11. 7712469 - Detectable earplug and cord (2010-05-11),

12. D601241 - In-ear stem (2009-09-29),

13. D599907 - In-ear coupling tip (2009-09-08),

Sperian Hearing Protection, LLC is a leading provider of high-quality hearing protection products, specializing in earplugs and earmuffs for various industries. With a strong focus on innovation and safety, Sperian offers comfortable, durable, and effective solutions to help workers protect their hearing in noisy environments. With a commitment to quality and customer satisfaction, Sperian is a trusted choice for hearing protection.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

13 Patents

#394 in San Diego, CA

#5,489 in California

#23,150 in US

#43,679 in the World

San Diego, CA, United States of America

Sperian Hearing Protection, LLC

Forward Citations = 190

11 inventors:

Jim Tiemens (4 out of 11 patents)

Stephen D Gilder (4 out of 10 patents)

John Allen Jenkins, Jr (3 out of 8 patents)

4. David B Mulvey (2 out of 5 patents)

5. Kevin Michael (2 out of 3 patents)

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