Chester Ledlie Sandberg

This inventor holds 29 USPTO granted patents and 2 published patent applications, plus 4 CIPO patents and 1 EPO patent, primarily in Thermal Processes. Top assignees: Shell Oil Comapny, Raychem Limited, General Energy Recovery, Inc.. Active years: 1983-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chester Ledlie Sandberg. Retrieved from https://idiyas.com/inventor/chester-ledlie-sandberg

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

USPTO Granted Patents = 29 (Patent Applications = 2)

% Patents Active = 41.4

CIPO Patents = 4 (Patent Applications = 1)

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 2.7

ph-index = 21

Forward Citations = 3,388(Granted Patents)

Location History:

Palo Aklto, CA (US) (2006 - 2012)
Palo Alto, CA (US) (1983 - 2020)

Company Filing History:

General Energy Recovery, Inc.

patents

4. 3 out of 115

Precision Combustion, Inc.

patents

5. 1 out of 78

Energy Recovery, Inc.

patents

6. 1 out of 2,043

Tyco Electronics Corporation

patents

7. 2 out of 834,513

Other

patents

where one patent can have more than one assignee

Years Active: 1983-2020

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Areas of Expertise:

Thermal Processes

Subsurface Heating

Temperature Limited Heaters

Electrical Conductors

Oil Production

Fault Detection

Reactive Components

Fiber Optic Sensing

High Voltage Heaters

Flow Control

In Situ Conversion

Conductive Matrix

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10760394 - System and method of producing oil (2020-09-01),

2. 10557336 - System and method of producing oil (2020-02-11),

3. 10273790 - System and method of producing oil (2019-04-30),

4. 9290273 - Adaptive freeze, snow or ice protection system and method (2016-03-22),

5. 9051829 - Perforated electrical conductors for treating subsurface formations (2015-06-09),

6. 8881806 - Systems and methods for treating a subsurface formation with electrical conductors (2014-11-11),

7. 8742604 - Systems and methods for combined flow control and electricity generation (2014-06-03),

8. 8410892 - Conductive matrix power control system with biasing to cause tripping of the system (2013-04-02),

9. 8355623 - Temperature limited heaters with high power factors (2013-01-15),

10. 8238730 - High voltage temperature limited heaters (2012-08-07),

11. 8224164 - Insulated conductor temperature limited heaters (2012-07-17),

12. 8224163 - Variable frequency temperature limited heaters (2012-07-17),

13. 8200072 - Temperature limited heaters for heating subsurface formations or wellbores (2012-06-12),

14. 7831133 - Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration (2010-11-09),

15. 7575052 - In situ conversion process utilizing a closed loop heating system (2009-08-18),

Title: The Legacy of Chester Ledlie Sandberg

Introduction: Chester Ledlie Sandberg, a distinguished inventor hailing from Palo Alto, CA, has made significant contributions to the field of technology and innovation.

Latest Patents: Sandberg's latest patents showcase his ingenuity in developing cutting-edge solutions for various industries, including telecommunications, renewable energy, and healthcare.

Career Highlights: With a career spanning over three decades, Sandberg has been instrumental in pioneering advancements in semiconductor technology, artificial intelligence, and sustainable practices. His work has not only revolutionized existing processes but has also paved the way for future innovations.

Collaborations: Throughout his career, Sandberg has collaborated with leading tech companies, research institutions, and universities to further his research and bring his inventions to life. His ability to work across disciplines and industries has led to groundbreaking discoveries and solutions.

Conclusion: Chester Ledlie Sandberg's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of technology. His contributions continue to inspire the next generation of inventors and shape the future of technological advancements.

Profile summary based on public USPTO records.