For the Inventor, By the Inventor

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Tempe, AZ, United States of America

Amtech Systems, Incorporated

USPTO Granted Patents = 75

Trademarks = 10

Forward Citations = 860

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36 inventors (with patents filed for the assignee):

Kelly Gravelle (53 out of 62 patents)

Michael Melville (29 out of 31 patents)

Robert W Tiernay (21 out of 27 patents)

4. Dale L Scott (20 out of 28 patents)

5. Charles A Johnson (14 out of 22 patents)

6. Greg Lantz (13 out of 13 patents)

7. Paul Hamel (13 out of 13 patents)

8. John Todd Elson (12 out of 16 patents)

9. Joseph H Kao (12 out of 13 patents)

10. Matthew K Burnett (12 out of 16 patents)

11. Steven J Catanach (11 out of 13 patents)

12. Yousuf Kamal (9 out of 9 patents)

13. Filip Weytjens (7 out of 8 patents)

14. Duane Wrasman (5 out of 6 patents)

15. Scott Brosi (5 out of 5 patents)

Core Competencies:

Vehicle Tracking

RFID Systems

Congestion Pricing

Electronic Toll Collection

Smartphone Transponders

Multi-Protocol RFID

Automatic Mode Detection

Range Estimation

Intermodulation Mitigation

Solar Cell Layer Deposition

HOV Lane Toll Collection

Microwave Ranging

75 patents: Sort by Forward Citations

1. 12483870 - Vehicle tracking system using smart-phone as active transponder (2025-11-25),

2. 12437285 - Vehicle tracking system for congestion pricing using transponders (2025-10-07),

3. 12069552 - Vehicle tracking system using smart-phone as active transponder (2024-08-20),

4. 12056566 - Vehicle tracking system using transponders (2024-08-06),

5. 12015969 - Vehicle tracking system using smart-phone as active transponder (2024-06-18),

6. 11836569 - Vehicle tracking system using smart-phone as active transponder (2023-12-05),

7. 11663427 - Vehicle tracking system using transponders (2023-05-30),

8. 11450203 - RFID system with time slot interleaving (2022-09-20),

9. 11341345 - Vehicle tracking system using transponders (2022-05-24),

10. 11323865 - Vehicle tracking system using smart-phone as active transponder (2022-05-03),

11. 11288464 - Multi-protocol RFID system (2022-03-29),

12. 11257303 - Vehicle-based electronic toll system with interface to vehicle display (2022-02-22),

13. 11039284 - Vehicle tracking system using smart-phone as active transponder (2021-06-15),

14. 10896552 - Vehicle-based electronic toll system with interface to vehicle display (2021-01-19),

15. 10769392 - Vehicle tracking system using transponders (2020-09-08),

Amtech Systems, Incorporated is a global provider of thermal processing and wafer handling solutions for the semiconductor and solar industries. With over 30 years of experience, Amtech offers innovative products and services that enable semiconductor manufacturers to improve their production yields and reduce manufacturing costs. Their solutions range from batch diffusion systems and atomic layer deposition systems to wafer transfer systems and automation tools.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

75 Patents

#8 in Tempe, AZ

#54 in Arizona

#4,702 in US

#9,615 in the World

Tempe, AZ, United States of America

Amtech Systems, Incorporated

Forward Citations = 860

36 inventors:

Kelly Gravelle (53 out of 62 patents)

Michael Melville (29 out of 31 patents)

Robert W Tiernay (21 out of 27 patents)

4. Dale L Scott (20 out of 28 patents)

5. Charles A Johnson (14 out of 22 patents)

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