US Patents
6,695,997 Multilayer synthetic stopper
6,613,406 Multilayer synthetic stopper
6,248,272 Multilayer synthetic stopper
6,239,790 Force sensing semiconductive touchpad
6,153,275 Multilayer synthetic stopper
6,085,923 Composite synthetic stopper
6,084,572 Isometric pointing device with integrated click and method therefore
5,943,044 Force sensing semiconductive touchpad
5,847,639 Layered pressure transducer land method for making same
5,828,363 Force-sensing pointing device
5,659,334 Force-sensing pointing device
5,365,671 Inclinometer
5,302,936 Conductive particulate force transducer
5,296,837 Stannous oxide force transducer and composition
5,053,585 Multipurpose keyboard using digitizer pad featuring spatial minimization of a pressure contact area and method of making same
4,994,783 Electronic device fabrication on non-conductive polymer substrate
4,963,702 Digitizer pad featuring spacial definition of a pressure contact area
4,855,361 Conductive polymer-polyimide blends and method for producing same
4,851,487 Conductive polymer materials and method of producing same
4,822,638 Electronic device fabrication on non-conductive polymer substrate
4,806,271 Preparation of base-type conducting polymers
4,798,685 Production of base-type conducting polymers
Additionally, two US patents pending. Numerous foreign patents.