Location History:
- Acton, MA (US) (1984 - 1988)
- Boxboro, MA (US) (1990 - 1993)
- Boxborough, MA (US) (1989 - 1999)
Company Filing History:
13 out of 163 
1 out of 832,680 Years Active: 1984-1999
Title: The Innovative Journey of Philip A. Lessard
Introduction
Philip A. Lessard, a distinguished inventor based in Acton, MA, has made significant contributions to the field of cryogenic technology. With a portfolio encompassing 14 patents, Lessard's innovative spirit is evident in his creative solutions to complex engineering challenges.
Latest Patents
Among his latest innovations are two noteworthy patents. The first details a purge and rough cryopump regeneration process. This process enhances the efficacy of cryopumps by incorporating a dual-mode operational approach, first engaging a high-temperature mode followed by a lower ambient temperature mode. If the system exhibits failure during testing after roughing at the lower temperature, it is designed to be repurged with the rough valve open, facilitating efficient cryogenic processes.
The second patent showcases a high conductance water pump specifically designed to function under cryogenic conditions. This innovative device effectively traps water vapor while remaining open to non-condensing gases, ensuring high conductance to a turbomolecular pump. The design features a single cylinder with optimal length-to-diameter ratios and includes a center baffle that minimizes conductance reduction, maximizing the pump's efficiency.
Career Highlights
Throughout his career, Lessard has been associated with esteemed organizations such as Helix Technology Corporation, where his expertise in cryogenic systems has greatly advanced their technological capabilities.
Collaborations
Lessard has collaborated with notable industry professionals, including Allen J. Bartlett and Bruce R. Andeen. These partnerships have likely fostered an exchange of innovative ideas, further contributing to his success as an inventor.
Conclusion
Philip A. Lessard’s work exemplifies the spirit of innovation that drives progress in engineering and technology. His patents not only address current challenges in cryogenic systems but also pave the way for future advancements in the field. Through his contributions, Lessard remains a pivotal figure in the world of inventions and innovations.
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.