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For the Inventor, By the Inventor

Vandalia, OH, United States of America

Heraeus Epurio LLC


USPTO Granted Patents = 3


Trademarks = 2

Forward Citations = 1

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6 inventors (with patents filed for the assignee):

goldMedal Yongqiang Zhang (2 out of 6 patents)

silverMedal Ram B Sharma (2 out of 5 patents)

bronzeMedal Darin Campo (1 out of 1 patent)

4.  Martin Kunz (1 out of 3 patents)

5.  Udo Merker (1 out of 31 patents)

6.  Matthias Intelmann (1 out of 8 patents)

7.  Udo Guntermann (14 patents)

8.  Wilfried Lövenich (15 patents)

9.  Arnulf Scheel (4 patents)

10.  Klaus Wussow (26 patents)

11.  Katrin Asteman (8 patents)

12.  Miyazaki Tomohiro (0 patent)

13.  Okamoto Syuji (0 patent)

14.  Watanabe Kento (0 patent)

15.  Loevenich Wilfried (0 patent)


3 patents:

1. 12400799 - Process for the production of a layer composition (2025-08-26),
2. 11292764 - Cyclic sulfonate compounds as photoacid generators in resist applications (2022-04-05),
3. 10976658 - Sulfonic acid derivative compounds as photoacid generators in resist applications (2021-04-13),
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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#7 in Vandalia, OH

#2,785 in Ohio

#72,023 in US

...
Vandalia, OH, United States of America

Heraeus Epurio LLC

Forward Citations = 1

6 inventors:

goldMedal Yongqiang Zhang (2 out of 6 patents)

silverMedal Ram B Sharma (2 out of 5 patents)

bronzeMedal Darin Campo (1 out of 1 patent)

4.  Martin Kunz (1 out of 3 patents)

5.  Udo Merker (1 out of 31 patents)

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