RayVio

RayVio Corporation operated as a specialized health and hygiene company focused on developing and manufacturing ultraviolet (UV) LED technology. Founded in 2012 by Dr. Robert C. Walker, Yitao Liao, Theodore Moustakas, and Milan Minsky, the company aimed to provide solutions for water and environmental disinfection. The foundational technology stemmed from the doctoral thesis of co-founder Yitao Liao, which focused on enhancing the efficiency and affordability of UV LED technology. RayVio was headquartered in Hayward, California, and is now out of business. The company's business model centered on supplying its patented UV LED components to original equipment manufacturer (OEM) partners. These partners would then integrate RayVio's technology into a new generation of health and hygiene products. RayVio's primary market was the disinfection sector, targeting applications in water purification, air and surface disinfection, healthcare, and consumer products. Over its lifespan, the company raised a total of $35.3 million in funding over three rounds from investors including IPV Capital, Tsing Capital, DCM Ventures, and Capricorn Investment Group. RayVio's core product was a series of powerful and compact UV LEDs. A key product line, the XP Series, was capable of delivering 60mW of UV light, a benchmark performance that enabled sterilization of flowing water and medical instruments without using traditional mercury lamps. Another product line, the XE Series, offered medium-power UV LEDs in a compact 3535 package for high-volume consumer applications like disinfection and phototherapy. These UV LEDs operated in the 280 to 290-nanometer wavelength range, which deactivates the DNA of pathogens like bacteria and viruses. This technology was positioned as a chemical-free and mercury-free solution for on-demand disinfection in products such as self-disinfecting water bottles, humidifiers, and hospital surface cleaners. The company's technology was distributed globally through partners like Digi-Key Electronics. A significant event in the company's history was a patent infringement lawsuit won by Nitride Semiconductor in January 2020, which declared that RayVio had infringed on Nitride's patent. According to PitchBook, the company underwent liquidation in June 2019. Keywords: UV LED, ultraviolet disinfection, water purification, surface disinfection, health and hygiene technology, semiconductor, OEM components, UV-C LED, germicidal irradiation, pathogen deactivation, clean water technology, point-of-use disinfection, mercury-free sterilization, LED manufacturing, environmental hygiene, healthcare disinfection, consumer health products, advanced materials, solid-state lighting, microbial inactivation