This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Gemological Institute of America, Eightstar Diamond Company, Inc., California Institute of Technology. Active years: 2003-2026.
Location History:
- Albany, OR (US) (2003)
- Carlsbad, CA (US) (2004)
- Murrieta, CA (US) (2009 - 2014)
Company Filing History:
4 out of 76 
2 out of 2 
1 out of 4,624 
Years Active: 2003-2026
Title: Al Gilbertson: Innovator in Gemstone Cut Grading
Introduction
Al Gilbertson is a notable inventor based in Murrieta, California, with a focus on innovations in gemstone cut grading. He holds a total of four patents, showcasing his expertise and contributions to the field of gemology. His work has significantly impacted how diamonds are evaluated and graded.
Latest Patents
Among his latest patents is a system and method for gemstone cut grading. This innovative system utilizes various appearance metrics to generate scores for multiple cut components that affect the quality of a diamond's cut. These components include brightness, fire, scintillation, overweight, durability, polish, and symmetry. The cut grading system employs a sophisticated algorithm that processes individual scores to produce an overall cut grade for the diamond. This methodology is designed to emulate actual observation grading, ensuring that the overall cut grade accurately reflects the diamond's cut quality. In practical applications, the system is fully automated and computer-implemented, enhancing efficiency in the grading process.
Career Highlights
Al Gilbertson has made significant strides in his career, particularly through his work with the Gemological Institute of America, Inc. His contributions to the field have been recognized and valued, establishing him as a key figure in gemstone evaluation.
Collaborations
Throughout his career, Al has collaborated with notable individuals such as Troy Blodgett and Ronald Hendrik Geurts. These partnerships have further enriched his work and innovations in the gemology sector.
Conclusion
Al Gilbertson's contributions to gemstone cut grading through his patents and collaborations have made a lasting impact on the industry. His innovative approaches continue to influence how diamonds are assessed and valued in the market.