For the Inventor, By the Inventor

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Cuyahoga Falls, OH, United States of America

Tech Pro, Inc.

USPTO Granted Patents = 3

EPO Patents = 1

Forward Citations = 26

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4 inventors (with patents filed for the assignee):

John B Putman (3 out of 95 patents)

Matthew C Putman (2 out of 105 patents)

Joseph G Bulman (2 out of 3 patents)

4. Bradley J Henry (1 out of 1 patent)

5. Edward G Shifrin (7 patents)

6. Mark A Umansky (5 patents)

7. Ralf Kolvenbach (1 patent)

8. Mordeahi D Shvartsman (0 patent)

3 patents: Sort by Forward Citations

1. 6829951 - Process for the physical testing of rubber (2004-12-14),

2. 6795172 - Method for preparing a cut surface in uncured rubber samples for measuring filter dispersion (2004-09-21),

3. 6681617 - Variable eccentric rheometer system (2004-01-27),

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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#10 in Cuyahoga Falls, OH

#2,863 in Ohio

#73,732 in US

Cuyahoga Falls, OH, United States of America

Tech Pro, Inc.

Forward Citations = 26

4 inventors:

John B Putman (3 out of 95 patents)

Matthew C Putman (2 out of 105 patents)

Joseph G Bulman (2 out of 3 patents)

4. Bradley J Henry (1 out of 1 patent)

5. Edward G Shifrin (7 patents)

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