Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Robert Portillo Patents Inventor: Portillo; Robert Address: Carlsbad, CA No. of patents: 6 Patents: Patent Number Title Of Patent Date Issued D490106 Fountain pen May 18, 2004 D489085 Pen April 27, 2004 D481070 Curved pen clip October 21, 2003 D478742 Pen display August 26, 2003 D474809 Pen with curved clip and angular glass tipped bottom May 20, 2003 D451549 Writing instrument grip and body December 4, 2001       Recently Added Patents Method and apparatus for mutual authentication at handoff in a mobile wireless communication network Phase-shifting mask and method of forming pattern using the same Power control module for electrical appliances Pet toy Method for manufacturing field effect transistor having channel consisting of silicon fins and silicon body and transistor structure manufactured thereby Network firewall test methods and apparatus Interposer, semiconductor chip mounted sub-board, and semiconductor package   Randomly Featured Patents Buried heterostructure with aluminum-free active layer and method of making same Ink jet print head with tilting nozzle Bias field estimation for intensity inhomogeneity correction in MR images Visualization device for near-IR laser designator Alternate constant current or voltage generator for an ultrasonic generator Media device Water survival device Production of diaphragms over a cavity by grinding to reduce wafer thickness Moisture barrier cone Portable radio telephone © 2006-2008 PatentGenius. All Rights Reserved.