Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Microinscribed gemstone Image Number 13 for United States Patent #6684663. A microinscribed gemstone is inscribed by a laser beam to graphitize a surface portion of the gemstone without damaging a bulk portion.       Recently Added Patents Tire fitting machine Disparate clock domain synchronization Engine Diffractive lens and image pickup device using the same Signaling of region-of-interest scalability information in media files Implantable lead/electrode delivery measurement and feedback system Stem shoulder seal with double rings and an assembly of independent dual stem seals   Randomly Featured Patents Absorption heat pump Page addressing mechanism Rotatable food serving assembly Auto tensioner Analog front-end circuit and electronic instrument Method of and device for detecting cable connection using an oscillation circuit and a counter Operating mode for a communication system Method and apparatus for processing organic material Method and apparatus for paging alternate users Lockup clutch for a hydrodynamic torque converter © 2006-2008 PatentGenius. All Rights Reserved.