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For the Inventor, By the Inventor

Lufkin, TX, United States of America

Lufkin Industries, LLC


USPTO Granted Patents = 27

% Expired Patents = 14.8



Trademarks = 4

Forward Citations = 219

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46 inventors (with patents filed for the assignee):

goldMedal Doneil Macusi Dorado (6 out of 8 patents)

silverMedal Sam Gavin Gibbs (4 out of 9 patents)

bronzeMedal Kenneth Bernard Nolen (4 out of 9 patents)

4.  LeMoyne Boyer (3 out of 6 patents)

5.  David W Doyle (3 out of 5 patents)

6.  Kenneth H Vincent (3 out of 4 patents)

7.  Thomas P Shoup (3 out of 3 patents)

8.  Eric S Oestreich (3 out of 5 patents)

9.  Michael A Fesi (2 out of 13 patents)

10.  John C Nicholas (2 out of 9 patents)

11.  Donald H Rockefeller (2 out of 3 patents)

12.  Willard J Lapeyrouse (2 out of 3 patents)

13.  Jeffrey J Dacunha (2 out of 2 patents)

14.  Kenneth O Beckman (2 out of 2 patents)

15.  John M McCrady (1 out of 10 patents)


27 patents:

1. 10590725 - Optical alignment system for beam pumping unit (2020-03-17),
2. 10422205 - Low profile rod pumping unit with pneumatic counterbalance for the active control of the rod string (2019-09-24),
3. 9725995 - Bottle chamber gas lift systems, apparatuses, and methods thereof (2017-08-08),
4. 9618048 - Reverse bypass cooling for tilted pad journal and tilting pad thrust bearings (2017-04-11),
5. 9617837 - Hydraulic oil well pumping apparatus (2017-04-11),
6. 9587672 - Adjustable offset pivot journal pad (2017-03-07),
7. 9541436 - Distributed two dimensional fluid sensor (2017-01-10),
8. 9534634 - Bearing system for dynamically varying loads (2017-01-03),
9. 9410572 - Five-axial groove cylindrical journal bearing with pressure dams for bi-directional rotation (2016-08-09),
10. 9115574 - Low profile rod pumping unit with pneumatic counterbalance for the active control of the rod string (2015-08-25),
11. 9013322 - Real-time onsite internet communication with well manager for constant well optimization (2015-04-21),
12. 8894286 - Bridge spring centering device for squeeze film dampers (2014-11-25),
13. 8849594 - Methods for measuring leakage rate and inferring production rate of an oilfield downhole pump (2014-09-30),
14. 8678082 - Hydraulic oil well pumping apparatus (2014-03-25),
15. 8433516 - Apparatus for analysis and control of a reciprocating pump system by determination of a pump card (2013-04-30),
Lufkin Industries, LLC is an American manufacturer of industrial equipment and components for the oil and gas industry. With over 110 years of experience, Lufkin has established itself as a leading provider of high-quality pumping solutions, power transmission products, and industrial gears. Headquartered in Lufkin, Texas, the company has a global presence, serving customers worldwide with their innovative and reliable products. Lufkin Industries is committed to delivering exceptional performance, efficiency, and customer satisfaction.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

Lufkin Industries, LLC
27 Patents

#1 in Lufkin, TX

#710 in Texas

#12,400 in US

#23,953 in the World

Lufkin, TX (US)
Lufkin, TX, United States of America

Lufkin Industries, LLC

Forward Citations = 219

46 inventors:

goldMedal Doneil Macusi Dorado (6 out of 8 patents)

silverMedal Sam Gavin Gibbs (4 out of 9 patents)

bronzeMedal Kenneth Bernard Nolen (4 out of 9 patents)

4.  LeMoyne Boyer (3 out of 6 patents)

5.  David W Doyle (3 out of 5 patents)

Please report any incorrect information to [email protected]
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