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For the Inventor, By the Inventor

Ballwin, MO, United States of America

Edwin L Johnson

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.4

ph-index = 7

Forward Citations = 151(Granted Patents)


Location History:

  • Jackson, WI (US) (1977)
  • Seattle, WA (US) (1980)
  • Issaquah, WA (US) (1977 - 2000)
  • Ballwin, MO (US) (1999 - 2019)

Company Filing History:

goldMedal3 out of 3 
 
Edco USA
 patents
silverMedal1 out of 5 
 
Vanson, Inc.
 patents
bronzeMedal7 out of 832,680 
Other
 patents

Years Active: 1977-2019

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11 patents (USPTO):Explore Patents
1. 10502237 - Method and system for attenuating transmission of high amplitude oscillations by a vacuum system (2019-12-10),
2. 9964230 - Retarder control valve assembly and system for rail cars (2018-05-08),
3. 9732876 - Retarder control valve assembly and system for rail cars (2017-08-15),
4. 6130321 - High tap density chitosan, and methods of production (2000-10-10),
5. 5960821 - Flow sensor device and associated vacuum holding system (1999-10-05),
6. 4199496 - Process for the recovery of chemicals from the shells of crustacea (1980-04-22),
7. 4195175 - Process for the manufacture of chitosan (1980-03-25),
8. 4159932 - Process for activating chitin by microwave treatment and improved (1979-07-03),
9. 4066735 - Process for demineralization of crustacea shells (1978-01-03),
10. 4018678 - Method of and apparatus for fluid filtration and the like with the aid (1977-04-19),
11. 4001920 - Quick-disconnect buckle (1977-01-11),

Title: Edwin L Johnson: Innovator in Vacuum Systems and Rail Control Technologies

Introduction

Edwin L Johnson is a notable inventor based in Ballwin, MO (US), recognized for his contributions to various technological advancements. He holds a total of 11 patents, showcasing his innovative spirit and dedication to improving engineering solutions.

Latest Patents

Among his latest patents is a groundbreaking method and system for attenuating transmission of high amplitude oscillations by a vacuum system. This invention utilizes a flow-modulated damper to effectively disperse and dampen high-amplitude vacuum pressure oscillations, enabling fine vacuum control essential for delicate procedures such as eye surgery. Another significant patent is the retarder control valve assembly and system for rail cars. This system employs cartridge valves within a manifold body, allowing for speed control of rail cars without the need for wearing surfaces, dynamic seals, or moving parts. The design facilitates easy replacement of the cartridge valves without replumbing, enhancing efficiency and reliability in rail operations.

Career Highlights

Throughout his career, Edwin has worked with various companies, including Edco USA, where he applied his expertise in developing innovative solutions. His work has significantly impacted the fields of vacuum technology and rail control systems.

Collaborations

Edwin has collaborated with notable individuals such as Quintin P Peniston and Everett J Nichols, contributing to the advancement of engineering solutions through teamwork and shared expertise.

Conclusion

Edwin L Johnson's innovative contributions to vacuum systems and rail control technologies highlight his role as a significant figure in engineering. His patents reflect a commitment to enhancing precision and efficiency in critical applications.

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