For the Inventor, By the Inventor

Enter assignee name

Bartlesville, OK, United States of America

Provesta Corporation

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 24

Loading Chart...

Loading Chart...

4 inventors (with patents filed for the assignee):

Donald O Hitzman (2 out of 41 patents)

Thomas R Hopkins (1 out of 22 patents)

John W Vanderveen (1 out of 25 patents)

4. Emil A Malick (1 out of 10 patents)

3 patents: Sort by Forward Citations

1. 4342835 - Fermentation process and apparatus (1982-08-03),

2. 4324527 - Centrifugal pump (1982-04-13),

3. 4261420 - Enriched oil recovery using carbon dioxide (1981-04-14),

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#7 in Bartlesville, OK

#396 in Oklahoma

#72,042 in US

Bartlesville, OK, United States of America

Provesta Corporation

Forward Citations = 24

4 inventors:

Donald O Hitzman (2 out of 41 patents)

Thomas R Hopkins (1 out of 22 patents)

John W Vanderveen (1 out of 25 patents)

4. Emil A Malick (1 out of 10 patents)

Please report any incorrect information to support@idiyas.com

Loading…