1
David Gillespie, Timothy P Allen, Ralph Wolf: Object position detector with edge motion feature and gesture recognition. Synaptics Incorporated, D Alessandro & Ritchie, August 6, 1996: US05543591 (566 worldwide citation)

Methods for recognizing gestures made by a conductive object on a touch-sensor pad are disclosed. Tapping, pushing, hopping, and zigzag gestures are recognized by analyzing the position, pressure, and movement of the conductive object on the sensor pad during the time of a suspected gesture, and sig ...


2
David Gillespie, Timothy P Allen, Aaron T Ferrucci: Pressure sensitive scrollbar feature. Synaptics Incorporated, D Alessandro & Ritchie, March 30, 1999: US05889236 (446 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in ...


3
Andrew C Hsu, Shawn P Day, Richard Schediwy, David Gillespie: Flexible transparent touch sensing system for electronic devices. Synaptics Incorporated, Ingrassia Fisher & Lorenz PC, April 18, 2006: US07030860 (384 worldwide citation)

A transparent, capacitive sensing system particularly well suited for input to electronic devices is described. The sensing system can be used to emulate physical buttons or slider switches that are either displayed on an active display device or printed on an underlying surface. The capacitive sens ...


4
David Gillespie, Timothy P Allen, Robert J Miller, Federico Faggin: Object position detector with edge motion feature. Synaptics Incorporated, D Alessandro & Ritchie, August 6, 1996: US05543590 (350 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in ...


5
Timothy P Allen, David Gillespie, Robert J Miller, Günter Steinbach: Object position detection system and method. Synaptics, Sierra Patent Group, May 29, 2001: US06239389 (262 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in ...


6
Timothy P Allen, David Gillespie, Robert J Miller, Gunter Steinbach: Object position detector. Synaptics, D Alessandro & Ritchie, June 22, 1999: US05914465 (236 worldwide citation)

A proximity sensor system includes a sensor matrix array having a characteristic capacitance on horizontal and vertical conductors connected to sensor pads. The capacitance changes as a function of the proximity of an object or objects to the sensor matrix. The change in capacitance of each node in ...


7
David Gillespie, Kevin K Cuddy: Process and kit for isolating and purifying RNA from biological sources. Hahnemann University, Dann Dorfman Herrell and Skillman, October 13, 1992: US05155018 (110 worldwide citation)

A process is provided for isolating and purifying biologically active RNA from a biological sources containing RNA, DNA and other cellular materials. The process involves contacting the RNA-containing source with particles comprising siliceous material, such as finely-divided glass, in the presence ...


8
David Gillespie, Isadore Brodsky, Joel Bresser: Immobilization of message RNA directly from cells onto filter material. Hahnemann University, Cushman Darby & Cushman, November 20, 1984: US04483920 (84 worldwide citation)

Message RNA is immobilized directly from cells onto filter material. Immobilization is carried out by solubilizing cellular components with a chaotropic salt, passing the resultant solubilized cellular components through a filter which selectively binds message RNA and baking the filter containing b ...


9
Richard David Gillespie III: Auto-injection syringe having vent device. West Pharmaceutical Services of Delaware, Panitch Schwarze Belisario & Nadel, February 28, 2012: US08123724 (33 worldwide citation)

An auto-injection syringe is provided that includes an injection assembly and a retraction assembly operatively securable to the injection assembly. The retraction assembly includes a hypodermic needle having a needle hub, an end cap having a lower seal through which a portion of the hypodermic need ...


10
Alexander W Degroot, James C Stevens, Sylvie Y Desjardins, Jeffrey Weinhold, Edmund M Carnahan, David Gillespie, Daniel D Vanderlende: High melt strength polymers and method of making same. Dow Global Technologies, November 27, 2007: US07300983 (31 worldwide citation)

A polymer composition that has a backbone chain; and a plurality of long chain branches connected to the backbone is described. The polymer composition also has a value of 2g′LCB-1g′LCB that is less than about 0.22, where 1g′LCB is the long chain branching index for a fraction of the composition hav ...