Murrysville, PA, United States of America

James H Franz, Jr

This inventor holds 16 USPTO granted patents, primarily in Motor Control Technology. Top assignee: Westinghouse Electric Corporation. Active years: 1978-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James H Franz, Jr. Retrieved from https://idiyas.com/inventor/james-h-franz-jr

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

Calculating rank

USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 9

Forward Citations = 156(Granted Patents)

Location History:

Murrysville both of, PA (US) (1978)
Pleasant Hills, PA (US) (1984)
Murrysville, PA (US) (1978 - 1985)

Company Filing History:

16 out of 8,033

Westinghouse Electric Corporation

patents

Years Active: 1978-1985

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Areas of Expertise:

Motor Control

Chopper Control

Electric Propulsion

Transit Vehicles

Brake Control

Field Control

Current Control

Voltage Control

Apparatus

Method

Vehicle Systems

Phase Angle Limiting

16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4516059 - Motor control chopper apparatus phase angle limiting (1985-05-07),

2. 4471277 - Vehicle propulsion motor control apparatus (1984-09-11),

3. 4394724 - Propulsion motor control apparatus and method (1983-07-19),

4. 4393338 - Vehicle propulsion motor control apparatus (1983-07-12),

5. 4387870 - Transit vehicle shunt determination (1983-06-14),

6. 4381479 - Electric motor chopper control apparatus and method (1983-04-26),

7. 4380724 - Shunt field control apparatus and method (1983-04-19),

8. 4370603 - Shunt field control apparatus and method (1983-01-25),

9. 4355267 - Propulsion motor control apparatus (1982-10-19),

10. 4352049 - Brake control apparatus and method (1982-09-28),

11. 4339697 - Propulsion motor control apparatus and method (1982-07-13),

12. 4257092 - Traction motor current control apparatus (1981-03-17),

13. 4216417 - Transit vehicle motor operation control apparatus and method (1980-08-05),

14. 4123693 - Transit vehicle generated voltage control apparatus and method (1978-10-31),

15. 4095153 - Transit vehicle electrical brake control apparatus and method (1978-06-13),

Title: The Innovations of James H Franz, Jr.

Introduction

James H Franz, Jr. is a notable inventor based in Murrysville, PA (US). He has made significant contributions to the field of motor control technology, holding a total of 16 patents. His work has had a profound impact on vehicle propulsion systems, showcasing his expertise and innovative spirit.

Latest Patents

Franz's latest patents include the "Motor control chopper apparatus phase angle limiting," which features a programmed microprocessor motor control apparatus designed for vehicle propulsion motors. This invention responds to an input control device to determine the acceleration rate and a predetermined motor voltage curve of the propulsion motor. Another significant patent is the "Vehicle propulsion motor control apparatus," which operates with a voltage source and includes thyristor switch devices arranged in a bridge circuit. This apparatus selectively determines the forward and reverse operation of a DC series motor coupled with a vehicle and has provisions for regenerative braking to return current back into the voltage source.

Career Highlights

James H Franz, Jr. is associated with Westinghouse Electric Corporation, where he has applied his innovative ideas to advance motor control technologies. His work at this esteemed company has allowed him to develop practical solutions that enhance vehicle performance and efficiency.

Collaborations

Franz has collaborated with notable coworkers such as Thomas C Matty and Stanley W Jones. These partnerships have contributed to the successful development of his patents and innovations.

Conclusion

James H Franz, Jr. is a distinguished inventor whose work in motor control technology has led to numerous patents and advancements in vehicle propulsion systems. His contributions continue to influence the industry and inspire future innovations.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]