This inventor holds 2 USPTO granted patents. Top assignee: Lockheed Martin Corporation. Active years: 1998-1999.
Company Filing History:
Years Active: 1998-1999
Title: Innovations by David William Hoffman, Jr.
Introduction
David William Hoffman, Jr. is an accomplished inventor based in Port Crane, NY (US). He has made significant contributions to the field of hybrid electric vehicles, particularly in the area of traction battery technology. With a total of 2 patents, Hoffman's work focuses on enhancing the efficiency and longevity of battery systems used in these vehicles.
Latest Patents
Hoffman's latest patents include a method for equalizing the voltage of traction battery modules in hybrid electric vehicles. This innovation involves a lead-acid traction battery composed of multiple series-connected modules. During vehicle operation, the traction battery is utilized for acceleration and charged by an ancillary power source. The equalization process maximizes the battery's capacity to accept regenerative charge current from dynamic braking, ensuring optimal performance. Another notable patent is a method for maintaining the charge capacity of traction battery modules. This method addresses the issue of sulfation, which can reduce the charge storage capacity of the battery when it remains in a partially charged state for extended periods. The maintenance procedure involves fully charging and then partially discharging specific modules to restore their charge condition, all managed by a programmed controller.
Career Highlights
David William Hoffman, Jr. is currently employed at Lockheed Martin Corporation, where he continues to innovate in the field of hybrid electric vehicle technology. His work at Lockheed Martin has allowed him to collaborate with other talented professionals in the industry, further advancing the development of efficient battery systems.
Collaborations
One of Hoffman's notable coworkers is Timothy Michael Grewe. Their collaboration has contributed to the successful development of innovative solutions in the realm of hybrid electric vehicles.
Conclusion
David William Hoffman, Jr. is a prominent inventor whose work in hybrid electric vehicle technology has led to significant advancements in traction battery systems. His patents reflect a commitment to improving battery efficiency and longevity, making a lasting impact on the industry.