Doylestown, PA, United States of America

Penn Color, Inc.


USPTO Granted Patents = 8

% Expired Patents = 75.0



Trademarks = 7

Forward Citations = 2

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8 inventors (with patents filed for the assignee):

goldMedal Charles B Rybny (6 out of 6 patents)

silverMedal Michael D Spiegel (3 out of 3 patents)

bronzeMedal Ronald W Schuck (3 out of 3 patents)

4.  Choung Lai (2 out of 2 patents)

5.  Fred Biemuller (2 out of 2 patents)

6.  James C Walsh (2 out of 2 patents)

7.  Scott Stamback (2 out of 2 patents)

8.  Venumadhava S Eleswarapu (2 out of 2 patents)

9.  Kelan Wieloch (2 out of 4 patents)

10.  James R Walsh (67 patents)

11.  Mark L Adams (85 patents)

12.  Andrew Sandt (0 patent)

13.  Javiera Rubilar (0 patent)

14.  Youcef Lariane (0 patent)

15.  Julie Cuddigan (0 patent)


8 patents:

Penn Color is a leading manufacturer of color and additive masterbatches for the plastics and coatings industries. With over 50 years of experience, Penn Color offers innovative solutions for color matching, customization, and product development. Their state-of-the-art facilities and expert team of chemists and engineers enable them to provide high-quality products and exceptional customer service.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Penn Color, Inc.
8 Patents

#5 in Doylestown, PA

#1,304 in Pennsylvania

#35,865 in US

Doylestown, PA (US)
Doylestown, PA, United States of America
Forward Citations = 2

8 inventors:

Please report any incorrect information to [email protected]
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