For the Inventor, By the Inventor

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Los Angeles, CA, United States of America

Pelka & Associates Inc.

USPTO Granted Patents = 3

Forward Citations = 89

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4 inventors (with patents filed for the assignee):

David Pelka (2 out of 50 patents)

Benjamin A Jacobson (1 out of 48 patents)

Robert D Gengelbach (1 out of 8 patents)

4. William Arthur Parkyn, Jr (1 out of 33 patents)

3 patents: Sort by Forward Citations

1. 10877253 - Optical system (2020-12-29),

2. 10274783 - Direct-view LED backlight with gradient reflective layer (2019-04-30),

3. 7273299 - Cylindrical irradiance-mapping lens and its applications to LED shelf-lighting (2007-09-25),

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#561 in Los Angeles, CA

#16,430 in California

#72,066 in US

Los Angeles, CA, United States of America

Pelka & Associates Inc.

Forward Citations = 89

4 inventors:

David Pelka (2 out of 50 patents)

Benjamin A Jacobson (1 out of 48 patents)

Robert D Gengelbach (1 out of 8 patents)

4. William Arthur Parkyn, Jr (1 out of 33 patents)

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