For the Inventor, By the Inventor

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Golden, CO, United States of America

Well Master Corporation

USPTO Granted Patents = 18

% Expired Patents = 5.6

Forward Citations = 110

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8 inventors (with patents filed for the assignee):

David A Green (13 out of 15 patents)

Robert E Bender (11 out of 11 patents)

Daniel John Nelson (3 out of 110 patents)

4. Neil W Longfellow (2 out of 2 patents)

5. Jesse L Smith (2 out of 2 patents)

6. Matthew Southard (1 out of 10 patents)

7. Stephen Wiese (1 out of 1 patent)

8. Kevin W Hightower (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 11965400 - System and method to maintain minimum wellbore lift conditions through injection gas regulation (2024-04-23),

2. 11746628 - Multi-stage downhole tool movement control system and method of use (2023-09-05),

3. 11555387 - Downhole tool movement control system and method of use (2023-01-17),

4. 11492863 - Enhanced geometry receiving element for a downhole tool (2022-11-08),

5. 11319785 - Downhole tool movement control system and method of use (2022-05-03),

6. 10577903 - Vortex plunger arrangement (2020-03-03),

7. 10378321 - Bypass plungers including force dissipating elements and methods of using the same (2019-08-13),

8. 9869165 - Plunger lift arrangement (2018-01-16),

9. 9121269 - Vortex plunger arrangement (2015-09-01),

10. 8869902 - Dynamic seal pad plunger arrangement (2014-10-28),

11. 8863837 - Plunger lift control system arrangement (2014-10-21),

12. 8607880 - Gas lift plunger acceleration arrangement (2013-12-17),

13. 8201629 - Staging tool seal arrangement for gas wells (2012-06-19),

14. 8162053 - Gas lift plunger assembly arrangement (2012-04-24),

15. 7793728 - Gas lift plunger arrangement (2010-09-14),

Well Master Corporation, based in Golden, Colorado, specializes in the development and manufacturing of advanced wellhead systems and related technologies for the oil and gas industry. The company focuses on providing innovative solutions that enhance the efficiency and safety of well operations. With a commitment to research and development, Well Master Corporation aims to address the evolving needs of energy extraction and management, contributing to sustainable practices within the sector.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

18 Patents

#27 in Golden, CO

#371 in Colorado

#17,933 in US

#34,146 in the World

Golden, CO, United States of America

Well Master Corporation

Forward Citations = 110

8 inventors:

David A Green (13 out of 15 patents)

Robert E Bender (11 out of 11 patents)

Daniel John Nelson (3 out of 110 patents)

4. Neil W Longfellow (2 out of 2 patents)

5. Jesse L Smith (2 out of 2 patents)

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