Company Filing History:
6 out of 6 
4 out of 15,488 
Years Active: 2015-2024
Title: The Innovative Contributions of Robin Ihnfeldt
Introduction
Robin Ihnfeldt is a notable inventor based in San Diego, CA. He has made significant contributions to the field of cryogenic refrigeration, holding a total of 6 patents. His work focuses on developing efficient systems and materials that enhance the performance of refrigeration technologies.
Latest Patents
One of Ihnfeldt's latest patents is for a magnetic refrigeration system designed for cryogenic applications. This system utilizes a compression-based cryocooler or liquid nitrogen pre-cool to cool a medium to approximately 80K. It operates in conjunction with a magnetic refrigeration system that provides cooling to temperatures below 80K. This innovative approach allows for the cooling of hydrogen gas to liquid form at a rate of about 3 kg/day to 300 kg/day, achieving higher efficiency than traditional vapor compression systems.
Another significant patent involves magnetocaloric alloys that are useful for magnetic refrigeration applications. These alloys, which may include Cerium, Neodymium, and Gadolinium-based compositions, are relatively inexpensive and exhibit limited thermal and structural hysteresis losses. The performance of these materials is comparable to or better than many known rare-earth-based magnetocaloric materials, making them attractive candidates for refrigeration applications.
Career Highlights
Throughout his career, Ihnfeldt has worked with various organizations, including General Engineering & Research LLC and the University of California. His experience in these institutions has allowed him to advance his research and contribute to the field of cryogenic technology.
Collaborations
Ihnfeldt has collaborated with notable colleagues such as Renkun Chen and Sungho Jin. These partnerships have further enriched his work and expanded the impact of his inventions.
Conclusion
Robin Ihnfeldt's innovative work in cryogenic refrigeration systems and magnetocaloric materials showcases his commitment to advancing technology in this field. His contributions are paving the way for more efficient cooling solutions in various applications.