Chesterfield, MO, United States of America

Richard E Hartsfield, Jr

This inventor holds 10 USPTO granted patents. Top assignees: Emerson Electric Company, Dana Emerson Actuator Systems, LLP, Other. Active years: 2002-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Richard E Hartsfield, Jr. Retrieved from https://idiyas.com/inventor/richard-e-hartsfield-jr

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

USPTO Granted Patents = 10

% Patents Active = 60.0

Average Co-Inventor Count = 2.3

ph-index = 7

Forward Citations = 214(Granted Patents)

Location History:

Chesterfield, MO (US) (2002 - 2006)
St. Louis, MO (US) (2004 - 2006)

Company Filing History:

9 out of 2,309

Emerson Electric Company

patents

1 out of 1

Dana Emerson Actuator Systems, LLP

patent

1 out of 834,513

Other

patents

where one patent can have more than one assignee

Years Active: 2002-2006

Loading Chart...

10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D527739 - Power steering motor (2006-09-05),

2. 7034423 - Electric power steering system including a permanent magnet motor (2006-04-25),

3. 7009319 - Controlling electric motor cogging (2006-03-07),

4. 6946766 - Permanent magnet machine (2005-09-20),

5. 6941638 - Interconnecting method for segmented stator electric machines (2005-09-13),

6. 6856055 - Interconnecting ring and wire guide (2005-02-15),

7. 6753632 - Controlling electric motor cogging (2004-06-22),

8. 6707209 - Reduced cogging torque permanent magnet electric machine with rotor having offset sections (2004-03-16),

9. 6597078 - Electric power steering system including a permanent magnet motor (2003-07-22),

10. 6359355 - Hot dropped shell and segmented stator tooth motor (2002-03-19),

Title: Richard E Hartsfield, Jr: Innovator in Electric Power Steering Systems

Introduction

Richard E Hartsfield, Jr. is a notable inventor based in Chesterfield, MO (US). He has made significant contributions to the field of electric power steering systems, holding a total of 10 patents. His innovative designs have paved the way for advancements in vehicle steering technology.

Latest Patents

One of Hartsfield's latest patents is for an electric power steering system that includes a permanent magnet motor. This system features a steering wheel connected to a steering shaft, which is in turn connected to a worm gear. The worm gear is engaged with a worm, and a permanent magnet motor is connected to the worm. The motor consists of a stator with twelve slots and a rotor with ten poles. The rotor may include one or more axial rotor sections that are rotationally offset by a specific angle. This design incorporates various types of permanent magnets, enhancing the efficiency and performance of the steering system.

Career Highlights

Throughout his career, Richard E Hartsfield, Jr. has worked with prominent companies such as Emerson Electric Company and Dana Emerson Actuator Systems, LLP. His experience in these organizations has contributed to his expertise in developing innovative solutions for electric power steering systems.

Collaborations

Hartsfield has collaborated with talented individuals in the industry, including Alan D Crapo and Todd A Walls. These partnerships have fostered a creative environment that has led to the development of cutting-edge technologies.

Conclusion

Richard E Hartsfield, Jr. is a distinguished inventor whose work in electric power steering systems has significantly impacted the automotive industry. His innovative patents and collaborations highlight his commitment to advancing technology in this field.

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]