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For the Inventor, By the Inventor

San Diego, CA, United States of America

Servojet Products International

Calculating rank
USPTO Granted Patents = 13

Forward Citations = 492

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11 inventors (with patents filed for the assignee):

goldMedal Niels J Beck (10 out of 25 patents)

silverMedal Robert L Barkhimer (5 out of 9 patents)

bronzeMedal Kresimir Gebert (4 out of 9 patents)

4.  Hoi Ching Wong (3 out of 9 patents)

5.  William P Johnson (3 out of 5 patents)

6.  N John Beck (1 out of 2 patents)

7.  Niel Lenannes Beck (1 out of 2 patents)

8.  Shui-Chi Li (1 out of 1 patent)

9.  William E Weseloh (1 out of 13 patents)

10.  Brian D Barkhimer (1 out of 1 patent)

11.  Robert I Barkhimer (1 out of 1 patent)


13 patents:

1. 6354268 - Cylinder pressure based optimization control for compression ignition engines (2002-03-12),
2. 6273076 - Optimized lambda and compression temperature control for compression ignition engines (2001-08-14),
3. 5853124 - Bottom seated pintle nozzle (1998-12-29),
4. 5823429 - Hybrid hydraulic electronic unit injector (1998-10-20),
5. 5752689 - Solenoid valve assembly with armature guide and fuel injection system (1998-05-19),
6. 5697346 - Method for using sonic gas-fueled internal combustion engine control (1997-12-16),
7. 5673673 - Method and apparatus for the high Mach injection of a gaseous fuel into (1997-10-07),
8. 5641121 - Conversion of non-accumulator-type hydraulic electronic unit injector to (1997-06-24),
9. 5553781 - Conversion of jerk type injector to accumulator type injector (1996-09-10),
10. 5553575 - Lambda control by skip fire of unthrottled gas fueled engines (1996-09-10),
11. 5526786 - Dual fuel engine having governor controlled pilot fuel injection system (1996-06-18),
12. 5477830 - Electronic fuel injection system for internal combustion engines having (1995-12-26),
13. 5450829 - Electronically controlled pilot fuel injection of compression ignition (1995-09-19),
Company Overview
Servojet Products International, based in San Diego, CA, specializes in the development and manufacturing of advanced fluid control systems and components. The company focuses on innovative solutions for various industries, including aerospace, automotive, and industrial applications. With a commitment to precision engineering, Servojet leverages cutting-edge technology to enhance performance and reliability in its product offerings, catering to a diverse range of client needs across multiple sectors.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

13 Patents

#411 in San Diego, CA

#5,671 in California

#23,878 in US

#45,137 in the World

San Diego, CA (US)
San Diego, CA, United States of America

Servojet Products International

Forward Citations = 492

11 inventors:

goldMedal Niels J Beck (10 out of 25 patents)

silverMedal Robert L Barkhimer (5 out of 9 patents)

bronzeMedal Kresimir Gebert (4 out of 9 patents)

4.  Hoi Ching Wong (3 out of 9 patents)

5.  William P Johnson (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Servojet Products International. Retrieved from https://idiyas.com/company/servojet-products-international

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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