San Francisco, CA, United States of America

John C Forster

This inventor holds 112 USPTO granted patents and 11 published patent applications and 1 EPO patent, primarily in Plasma Processing (CPC class C23C1-434). Top assignees: Applied Materials, Inc., International Business Machines Corporation, Lam Research Corporation. Active years: 1993-2026.

USPTO Granted Patents = 112 (Patent Applications = 11)

% Patents Active = 86.6

EPO Patents = 1 (Patent Applications = 3)

Average Co-Inventor Count = 4.5

ph-index = 25

Forward Citations = 2,099(Granted Patents)

Forward Citations (Not Self Cited) = 1,967(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Poughkeepsie, NY (US) (1993 - 1995)
Mountian View, CA (US) (2014)
San Francisco, CA (US) (1996 - 2018)
Sunnyvale, CA (US) (2021)
Mt. View, CA (US) (2014 - 2024)
Mountain View, CA (US) (2016 - 2024)
Santa Clara, CA (US) (2024)

Company Filing History:

98 out of 14,391

Applied Materials, Inc.

patents

13 out of 166,159

International Business Machines Corporation

patents

1 out of 3,928

Lam Research Corporation

patents

4. 1 out of 30,294

Siemens Aktiengesellschaft

patents

5. 1 out of 834,307

Other

patents

where one patent can have more than one assignee

Years Active: 1993-2026

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Areas of Expertise:

Plasma Source

Substrate Support

Impedance Circuit

Electrostatic Chuck

Sputtering

Film Stress Modulation

Microwave Plasma

Radical Source

Deposition

Cleaning Techniques

High Temperature

Metal Films

112 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12719142 - Wideband TEM to TM01 mode converter for microwave plasma systems (2026-08-25),

2. 12719021 - Smart dynamic load simulator for RF power delivery control system (2026-08-25),

3. 12692592 - Rotary electrical feedthrough integration for process chamber (2026-07-28),

4. 12205791 - Rating substrate support assemblies based on impedance circuit electron flow using machine learning (2025-01-21),

5. 12142458 - Symmetric plasma source to generate pie-shaped treatment (2024-11-12),

6. 12100576 - Metal oxide preclean chamber with improved selectivity and flow conductance (2024-09-24),

7. 12080519 - Smart dynamic load simulator for RF power delivery control system (2024-09-03),

8. 12027354 - Cleaning of SIN with CCP plasma or RPS clean (2024-07-02),

9. 12014906 - High temperature detachable very high frequency (VHF) electrostatic chuck (ESC) for PVD chamber (2024-06-18),

10. 11915918 - Cleaning of sin with CCP plasma or RPS clean (2024-02-27),

11. 11915917 - Methods and apparatus for reducing sputtering of a grounded shield in a process chamber (2024-02-27),

12. 11898236 - Methods and apparatus for processing a substrate (2024-02-13),

13. 11887818 - Methods and systems to modulate film stress (2024-01-30),

14. 11823871 - Microwave plasma source for spatial plasma enhanced atomic layer deposition (PE-ALD) processing tool (2023-11-21),

15. 11315769 - Plasma source for rotating susceptor (2022-04-26),

Title: John C Forster - Pioneering Inventor from San Francisco

Introduction: John C Forster is a renowned inventor based in San Francisco, CA, known for his groundbreaking contributions to various industries.

Latest Patents: John C Forster holds several patents in the fields of technology, healthcare, and renewable energy, with his most recent inventions focusing on sustainable solutions for everyday challenges.

Career Highlights: With a career spanning over two decades, John C Forster has established himself as a leading figure in the innovation landscape, with numerous successful inventions that have revolutionized their respective industries.

Collaborations: Throughout his career, John C Forster has collaborated with top research institutions, universities, and companies to bring his ideas to life, showcasing his ability to work effectively in multidisciplinary teams.

Conclusion: John C Forster's passion for innovation and his relentless drive to create a positive impact through his inventions make him a true pioneer in the world of technology and beyond.