For the Inventor, By the Inventor

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Park Ridge, IL, United States of America

Conversion Sound Inc.

USPTO Granted Patents = 3

EPO Patents = 2

Trademarks = 1

Forward Citations = 12

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4 inventors (with patents filed for the assignee):

Stavros Basseas (3 out of 8 patents)

Michael John Kilhefner (1 out of 1 patent)

Steven C Hannibal (1 out of 2 patents)

4. James R Anderson (1 out of 19 patents)

5. Michael Kilhefner (0 patent)

3 patents: Sort by Forward Citations

1. 10440458 - Comfort and high retention vibration and sound damping ear tips (2019-10-08),

2. 9451367 - On-site, custom fitted hearing equalizer (2016-09-20),

3. 9288592 - Custom ear adaptor system with balloon-style or elastomeric dome earpiece (2016-03-15),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#9 in Park Ridge, IL

#3,363 in Illinois

#72,042 in US

Park Ridge, IL, United States of America

Conversion Sound Inc.

Forward Citations = 12

4 inventors:

Stavros Basseas (3 out of 8 patents)

Michael John Kilhefner (1 out of 1 patent)

Steven C Hannibal (1 out of 2 patents)

4. James R Anderson (1 out of 19 patents)

5. Michael Kilhefner (0 patent)

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