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For the Inventor, By the Inventor

Windsor, CT, United States of America

Stanadyne Corporation


USPTO Granted Patents = 181


Trademarks = 24

Forward Citations = 2,215

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96 inventors (with patents filed for the assignee):

goldMedal Ilija Djordjevic (24 out of 44 patents)

silverMedal Leon P Janik (17 out of 52 patents)

bronzeMedal Alfred M Moen (15 out of 16 patents)

4.  Robert G Lucas (13 out of 13 patents)

5.  Mitchell L Wilgus (12 out of 29 patents)

6.  Charles W Davis (12 out of 12 patents)

7.  Roger H Ramsey (12 out of 13 patents)

8.  Michael J Williams (11 out of 20 patents)

9.  Daniel E Salzgeber (10 out of 11 patents)

10.  Mark S Cavanagh (6 out of 6 patents)

11.  Robert Raufeisen (6 out of 7 patents)

12.  Richard Paulo Pellini (5 out of 5 patents)

13.  David H Hodgkins (5 out of 5 patents)

14.  Yevgeniy Norkin (4 out of 4 patents)

15.  Stephen J Vardion (4 out of 4 patents)


Core Competencies:
Fuel Injection Systems
High Pressure Fuel Pumps
Direct Injection
Proportional Control Valves
Single Piston Pumps
Cavitation Suppression
Common Rail Injectors
Hydraulic Flow Control
Radial Piston Pumps
Integrated Injection Nozzles
Filter Change Indicators
Exhaust After Treatment

181 patents:

1. 11808232 - High pressure port fuel injection system (2023-11-07),
2. 11655786 - Fuel injector (2023-05-23),
3. 11603945 - Actuator and compact EGR valve (2023-03-14),
4. 11459988 - High pressure fuel pump with mechanical pressure regulation (2022-10-04),
5. 11098710 - Inlet control valve for high pressure fuel pump (2021-08-24),
6. 10975816 - Roller drive mechanism for GDI pump (2021-04-13),
7. 10539104 - Three stage proportional control valve (2020-01-21),
8. 10450992 - GDI pump with direct injection and port injection (2019-10-22),
9. 10331145 - Positive sealing proportional control valve with sealable vent valve (2019-06-25),
10. 10330065 - Direct magnetically controlled inlet valve for fuel pump (2019-06-25),
11. 10294906 - Electronically controlled inlet metered single piston fuel pump (2019-05-21),
12. 10273920 - Single piston pump with reduced piston side loads (2019-04-30),
13. 10107247 - Method of suppressing cavitation in a fuel injector (2018-10-23),
14. 9759174 - Constant pressure self-regulating common rail single piston pump (2017-09-12),
15. 9644589 - Debris diverter shield for fuel injector (2017-05-09),
Stanadyne Corporation is a global technology leader in the design, development, and manufacturing of fuel systems and components for diesel and gasoline engines. With over 150 years of industry experience, Stanadyne has built a reputation for innovation, reliability, and performance. Their products are used in a wide range of applications, including automotive, agricultural, construction, and industrial sectors. Through continuous investment in research and development, Stanadyne strives to provide cutting-edge solutions that meet the evolving needs of their customers in the transportation industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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181 Patents

#2 in Windsor, CT

#51 in Connecticut

#2,157 in US

#4,475 in the World

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Windsor, CT, United States of America

Stanadyne Corporation

Forward Citations = 2,215

96 inventors:

goldMedal Ilija Djordjevic (24 out of 44 patents)

silverMedal Leon P Janik (17 out of 52 patents)

bronzeMedal Alfred M Moen (15 out of 16 patents)

4.  Robert G Lucas (13 out of 13 patents)

5.  Mitchell L Wilgus (12 out of 29 patents)

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