This inventor holds 12 USPTO granted patents and 3 published patent applications and 2 EPO patents. Top assignees: Snap-On Tools Corporation, Cps Technology Holdings LLC, Clarios Germany Gmbh & Co. Kg. Active years: 1988-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
5 out of 157 
4 out of 244 
2 out of 35 
Years Active: 1988-2025
Title: Celebrating the Innovations of Donald J Caldwell
Introduction
Donald J Caldwell, an accomplished inventor based in Milwaukee, WI, has made significant contributions to the field of battery technology. With a remarkable portfolio of 11 patents, Caldwell's work has been pivotal in enhancing the design and functionality of lead acid batteries, allowing for safer and more efficient energy storage solutions.
Latest Patents
Caldwell's innovative spirit is reflected in his latest patents, which focus on improving battery terminals. His first patent discloses a lead acid battery that includes a housing with an exterior and a lead terminal extending through the housing. This design features a unique coating that ensures there is no exposed lead outside the housing, promoting safety and environmental integrity. Another noteworthy patent reveals a battery with a conductive terminal that extends beyond the surface of a battery cover. This terminal comprises a lead internal portion and an external surface made of a non-lead conductive material, showcasing yet another advancement in battery technology. Additionally, Caldwell has provided a method for producing such batteries, further demonstrating his expertise in this area.
Career Highlights
Throughout his career, Caldwell has worked with reputable companies, including Snap-on Tools Corporation and CPS Technology Holdings LLC. His experience in these organizations has played a crucial role in shaping his innovative ideas and facilitating the development of his patented technologies.
Collaborations
Caldwell has had the opportunity to collaborate with talented individuals in his field, including Mark S Bakula and Michael J Koop. These partnerships have enabled him to exchange knowledge and drive forward innovative solutions in battery design and technology.
Conclusion
Donald J Caldwell exemplifies the essence of innovation in the field of battery technology. His contributions through his patents not only enhance the safety and efficiency of batteries but also pave the way for future advancements. As he continues to refine his inventions and collaborate with fellow experts, the impact of his work is sure to resonate throughout the industry for years to come.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile