Location History:
- Irvine, CA (US) (1992)
- Mentor, OH (US) (1992 - 2003)
- Worcester, MA (US) (2022)
Company Filing History:
3 out of 62 
2 out of 585 
1 out of 832,718 Years Active: 1992-2022
Title: Innovations of John P. Callahan
Introduction
John P. Callahan is a notable inventor based in Mentor, OH (US), recognized for his contributions to various technological advancements. With a total of six patents to his name, Callahan has made significant strides in the fields of exhaust systems and composite materials.
Latest Patents
Among his latest innovations is the "Portable Exhaust Removal System," which is designed to be a portable, easily mountable, temporary exhaust removal system. This system is adapted to redirect exhaust emissions away from an internal combustion engine, effectively managing combustion gases. Another significant patent is the "Method of Making a Copper on INVAR® Composite." This composite is intended for use in forming multi-layer printed circuit boards and consists of an INVAR® sheet with a specific thickness, along with a layer of electrodeposited copper. The composite boasts a thermal coefficient of expansion (TCE) of about 2.8 to 6.0 ppm at temperatures ranging from 0°F to 200°F.
Career Highlights
Throughout his career, John P. Callahan has worked with prominent companies such as Gould Electronics Inc. and Gould Inc. His experience in these organizations has contributed to his expertise and innovative capabilities in the field.
Collaborations
Callahan has collaborated with notable individuals in his field, including Rolland D. Savage and Jiangtao Wang. These partnerships have likely enhanced his work and led to further advancements in his projects.
Conclusion
John P. Callahan's contributions to innovation, particularly in exhaust systems and composite materials, highlight his role as a significant inventor. His patents reflect a commitment to improving technology and addressing practical challenges in engineering.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.