This inventor holds 6 USPTO granted patents. Top assignees: Gemological Institute of America, Maniatech Incorporated, Lomanoha Ventures. Active years: 1998-2003.
Company Filing History:
2 out of 76 
2 out of 2 
1 out of 1 Years Active: 1998-2003
Title: The Innovative Contributions of Gilbert Norman Ravich
Introduction
Gilbert Norman Ravich is a notable inventor based in Lawndale, California, with a remarkable portfolio of six patents. His work primarily focuses on advancements in optical technology and gem identification, showcasing his expertise in these specialized fields.
Latest Patents
One of Ravich's latest patents is titled "Refocusing Wavelengths to a Common Focal Plane for Electrical Trace Testing." This invention relates to a method and apparatus for testing electrical traces, utilizing ultraviolet wavelengths from a laser source and visible wavelengths from a scanning camera. In the first embodiment, the wavelengths are focused using an auxiliary lens that accommodates the difference between the focusing planes of the ultraviolet laser source and the scanning camera. The second embodiment involves moving the camera optics of the scanning camera relative to its visible light source. Both methods employ a fused silica lens system, effectively avoiding the use of calcium fluoride. Another significant patent is the "Gem Identification Viewer," which is a device that uses filtered transmitted light to distinguish between type-I colorless diamonds and type II colorless diamonds, as well as natural diamonds and gems from synthetic or treated counterparts.
Career Highlights
Throughout his career, Ravich has made significant contributions to the fields of optical technology and gemology. He has worked with reputable organizations, including Maniatech Incorporated and the Gemological Institute of America, Inc. His innovative approaches have led to advancements that benefit both industries.
Collaborations
Ravich has collaborated with notable individuals in his field, including Mario Alfredo Cugini and Jeff Brakley. These partnerships have likely contributed to the development and refinement of his inventions.
Conclusion
Gilbert Norman Ravich's contributions to innovation in optical technology and gem identification demonstrate his significant impact on these fields. His patents reflect a commitment to advancing technology and improving industry standards.