This inventor holds 2 USPTO granted patents. Top assignees: North American Philips Corporation, Philips Electronics North America Corporation. Active years: 1989-1997.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 950 
1 out of 838 
Years Active: 1989-1997
Title: The Innovative Contributions of Daniel H. Shumway
Introduction
Daniel H. Shumway is a notable inventor based in Watkins Glen, NY (US). He has made significant contributions to the field of high-pressure gas discharge lamps, holding a total of 2 patents. His work has advanced the technology used in electric lamps, showcasing his expertise and innovative spirit.
Latest Patents
Shumway's latest patents include a high-pressure series arc discharge lamp construction with simplified features. This invention involves a high-pressure gas discharge lamp that includes first and second discharge devices electrically connected in series within an outer envelope. Each discharge device contains a discharge vessel that encloses a discharge space with an ionizable fill and first and second discharge electrode assemblies. The design allows for improved ionization and efficiency in lamp operation.
Another significant patent is for an electric lamp with reduced internal photoelectron production. This HID lamp features parts of its internal metal support covered with a layer of material that has a photoelectric work function greater than 5.0 electron volts. The use of granular zirconium oxide, which has a photoelectric work function of 5.8 eV, helps to minimize internal photoelectron production, enhancing the lamp's performance.
Career Highlights
Throughout his career, Daniel H. Shumway has worked with prominent companies such as North American Philips Corporation and Philips Electronics North America Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of lighting technology.
Collaborations
Shumway has collaborated with notable coworkers, including Andrew D. Jackson and Raghu Ramaiah. These partnerships have contributed to the successful development of his patents and innovations.
Conclusion
Daniel H. Shumway's contributions to the field of electric lamps demonstrate his innovative capabilities and commitment to advancing technology. His patents reflect a deep understanding of gas discharge systems and their applications, making him a significant figure in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile