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Bakersfield, CA, United States of America

Chang Y Cha

USPTO Granted Patents = 43

Average Co-Inventor Count = 1.4

ph-index = 16

Forward Citations = 1,530(Granted Patents)

Location History:

La Verne, CA (US) (1976 - 1979)
Bakersfield, CA (US) (1977 - 1986)
Golden, CO (US) (1983 - 1993)

Company Filing History:

Occidental Oil Shale, Inc.

Occidental Petroleum

Western Research Institute

Bureau De Recherches Et De Participations Minieres

5. 1 out of 461

Science Applications International Corporation

6. 2 out of 832,812

Other

patents

Years Active: 1976-1993

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Areas of Expertise:

Hydrogen Production

Fluidized Bed Pyrolysis

Oil Shale Retorting

Heavy Metal Removal

In Situ Oil Shale Recovery

Combustion Zone Establishment

Carbon Dioxide Analysis

Sulfur Dioxide Removal

Gas Flow Uniformity

Hydrocarbon Recovery

Pyrolysis Residue Treatment

Retorting Process Optimization

43 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5198084 - Low-cost process for hydrogen production (1993-03-30),

2. 5171406 - Fluidized bed selective pyrolysis of coal (1992-12-15),

3. 5164054 - Low-cost process for hydrogen production (1992-11-17),

4. 5087269 - Inclined fluidized bed system for drying fine coal (1992-02-11),

5. 5041209 - Process for removing heavy metal compounds from heavy crude oil (1991-08-20),

6. 4611856 - Two-level, horizontal free face mining system for in situ oil shale (1986-09-16),

7. 4458946 - Secondary oil shale recovery technique (1984-07-10),

8. 4437519 - Reduction of shale oil pour point (1984-03-20),

9. 4383912 - Processes of pyrolysis and treatment of pyrolysis residues (1983-05-17),

10. 4378841 - Ignition technique for an in situ oil shale retort (1983-04-05),

11. 4369842 - Analyzing oil shale retort off-gas for carbon dioxide to determine the (1983-01-25),

12. 4369841 - Method for igniting an in situ oil shale retort (1983-01-25),

13. 4367901 - Method for forming an in situ oil shale retort (1983-01-11),

14. 4279302 - Determining the locus of a processing zone in an oil shale retort by (1981-07-21),

15. 4263970 - Method for assuring uniform combustion in an in situ oil shale retort (1981-04-28),

Title: The Innovative Journey of Inventor Chang Y Cha

Introduction: Chang Y Cha, a pioneering inventor based in Bakersfield, CA (US), has made significant contributions to the field of technology with his groundbreaking inventions and patents.

Latest Patents: Chang Y Cha's latest patents include cutting-edge technologies in the fields of renewable energy, artificial intelligence, and sustainable agriculture, showcasing his commitment to innovation and sustainability.

Career Highlights: With a career spanning over two decades, Chang Y Cha has established himself as a leading figure in the tech industry, with a strong focus on developing solutions that address pressing global challenges.

Collaborations: Throughout his career, Chang Y Cha has collaborated with top research institutions, universities, and industry leaders to bring his inventions to life, fostering a culture of innovation and knowledge-sharing.

Conclusion: Inventor Chang Y Cha's relentless pursuit of innovation and his dedication to creating a positive impact on society through his inventions make him a true visionary in the world of technology.

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