Al Gilbertson

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Murrieta, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for gemstone cut grading
- Patent number 8,239,143
- Issue date Aug 7, 2012
- Gemological Institute of America, Inc.
- Troy Blodgett
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
System and method for gemstone cut grading
- Patent number 8,095,325
- Issue date Jan 10, 2012
- Gemological Institute of America, Inc.
- Troy Blodgett
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
System and method for gemstone cut grading
- Patent number 7,571,060
- Issue date Aug 4, 2009
- Gemological Institute of America (GIA)
- Troy Blodgett
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
GENERATION OF GEM CUTS
- Publication number 20240391055
- Publication date Nov 28, 2024
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- James CONANT
- B24 - GRINDING POLISHING
Information Patent Application
GEMSTONE CUT ANALYSIS
- Publication number 20240394961
- Publication date Nov 28, 2024
- GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
- James CONANT
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and method for gemstone cut grading
- Publication number 20100010751
- Publication date Jan 14, 2010
- Troy Blodgett
- A44 - HABERDASHERY JEWELLERY
Information Patent Application
System and method for gemstone cut grading
- Publication number 20100010752
- Publication date Jan 14, 2010
- Troy Blodgett
- A44 - HABERDASHERY JEWELLERY
Information Patent Application
System and method for generating a gemstone proportion graphic
- Publication number 20060267975
- Publication date Nov 30, 2006
- Gemological Institute of America (GIA)
- Tom Moses
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and method for gemstone cut grading
- Publication number 20060074588
- Publication date Apr 6, 2006
- Troy Blodgett
- A44 - HABERDASHERY JEWELLERY