Company Filing History:

4 out of 492

Alliant Techsystems Inc.

Cordant Technologies Inc.

patents

4. 2 out of 3,385

Northrop Grumman Systems Corporation

Years Active: 1988-2023

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11846256 - Liquid rocket engine assemblies and related methods (2023-12-19),

2. 11028802 - Liquid rocket engine assemblies and related methods (2021-06-08),

3. RE43867 - Rocket assembly ablative materials formed from, as a precursor, staple cellulosic fibers, and method of insulating or thermally protecting a rocket assembly with the same (2012-12-17),

4. 6904755 - Rocket motor nozzle assemblies having vacuum plasma-sprayed refractory metal shell throat inserts, methods of making, and rocket motors including same (2005-06-14),

5. 6711901 - Rocket motor nozzle assemblies having vacuum plasma-sprayed refractory metal shell throat inserts, methods of making, and rocket motors including same (2004-03-30),

6. 6679965 - Low density composite rocket nozzle components and process for making the same from standard density phenolic matrix, fiber reinforced materials (2004-01-20),

7. 6479148 - Rocket assembly ablative materials formed from solvent-spun cellulosic precursors, and method of insulating or thermally protecting a rocket assembly with the same (2002-11-12),

8. 6235359 - Rocket assembly ablative materials formed from, as a precursor, staple cellulosic fibers, and method of insulating or thermally protecting a rocket assembly with the same (2001-05-22),

9. 5645219 - Addition-polymerization resin systems for fiber-reinforced nozzle (1997-07-08),

10. 5059301 - Process for the preparation of recarburizer coke (1991-10-22),

11. 5028311 - Delayed coking process (1991-07-02),

12. 4720338 - Premium coking process (1988-01-19),

Title: John K Shigley: Innovator in Liquid Rocket Engine Technology

Introduction

John K Shigley is a prominent inventor based in Ogden, UT (US), known for his significant contributions to the field of rocket propulsion. With a total of 12 patents to his name, Shigley has made remarkable advancements in liquid rocket engine assemblies.

Latest Patents

One of Shigley's latest patents focuses on liquid rocket engine assemblies and related methods. This innovative assembly comprises a thrust chamber, a nozzle, and a joint structure. The joint structure effectively attaches the thrust chamber and the nozzle, incorporating at least one seal element and an attachment ring positioned between the two components. Fasteners extend between the nozzle and the thrust chamber through the seal element and the attachment ring. Notably, the materials used for the thrust chamber and the nozzle exhibit different coefficients of thermal expansion. Additionally, the patent discloses a method for forming a liquid rocket engine assembly.

Career Highlights

Throughout his career, John K Shigley has worked with notable companies such as Alliant Techsystems Inc. and Conoco Inc. His experience in these organizations has contributed to his expertise in the field of rocket technology.

Collaborations

Shigley has collaborated with esteemed colleagues, including Allan P Thompson and Kenneth P Wilson, further enhancing his innovative work in rocket propulsion.

Conclusion

John K Shigley stands out as a key figure in the development of liquid rocket engine technology. His patents and collaborations reflect his dedication to advancing aerospace engineering.

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