1
Thomas B Harsch: Method to sustain TCP connection. Telxon Corporation, Amin & Turocy, April 3, 2001: US06212175 (254 worldwide citation)

The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (ie., client), deploys keep alive packets at selected times in order to reset a keep idle timer of a server ( ...


2
Thomas B Harsch: Electro-optic welding lens assembly using multiple liquid crystal light shutters and polarizers. Mack Gordon, Brown Murray Flick & Peckham, August 2, 1977: US04039254 (92 worldwide citation)

A liquid crystal welding lens assembly for use as the eyepiece of a welding helmet in which the light transmission of the lens assembly is no greater than 0.01% during the existence of a welding arc. This is achieved with the use of at least two liquid crystal light shutters and three polarizers alt ...


3
Thomas B Harsch: Surface alignment method for liquid crystal cells and production of polarizers therefor. Hoffmann La Roche, Samuel L Welt, Bernard S Leon, Mark L Hopkins, March 2, 1976: US03941901 (50 worldwide citation)

Method for producing homogeneous surface alignment of liquid crystal materials by applying to the surfaces of transparent plates bounding a liquid crystal film a polymer which is subjected to a shear thinning technique to cause elongation and alignment of long chain polymers. In certain embodiments ...


4
Thomas B Harsch: Method to sustain TCP connection. Symbol Technologies, Amin & Turocy, August 8, 2006: US07088698 (44 worldwide citation)

The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (i.e., client), deploys keepalive packets at selected times in order to reset a keepidle timer of a server (e ...


5
Thomas B Harsch: Electro-optic welding helmet lens assembly. Mack Gordon, Brown Murray Flick & Peckham, August 2, 1977: US04039803 (41 worldwide citation)

A protective welding lens assembly for use as the eyepiece of a welding helmet. The lens assembly utilizes a liquid crystal light shutter together with an electrical circuit adapted to change the light shutter from a uniform light-transmitting condition to a uniform, approximately opaque condition o ...


6
Thomas B Harsch: Method to sustain TCP connection. Symbol Technologies, May 11, 2010: US07715334 (18 worldwide citation)

The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (i.e., client), deploys keepalive packets at selected times in order to reset a keepidle timer of a server (e ...


7
Thomas B Harsch, Edd Dems: Multiplexing circuit for liquid crystal display. Hoffmann La Roche, Samuel L Welt, Bernard S Leon, Mark L Hopkins, August 16, 1977: US04042920 (6 worldwide citation)

A multiplexed electrical control circuit is provided for use with optical display devices of the type wherein electrical intelligence is translated into optical images of letters or numbers or other patterns through the use of a liquid crystal shutter device fully described in a copending applicatio ...


8
Thomas B Harsch: Method to sustain TCP connection. Symbol Technologies, Amin Turocy & Calvin, July 29, 2008: US07406061 (5 worldwide citation)

The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (i.e., client), deploys keepalive packets at selected times in order to reset a keepidle timer of a server (e ...


9
Thomas B Harsch: Method to sustain TCP connection. Telxon Corporation, Amin Turocy & Calvin, March 15, 2007: US20070058599-A1

The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (i.e., client), deploys keepalive packets at selected times in order to reset a keepidle timer of a server (e ...


10
Thomas B Harsch: Method to sustain tcp connection. Symbol Technologies, Amin Turocy & Calvin, January 15, 2009: US20090017810-A1

The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (i.e., client), deploys keepalive packets at selected times in order to reset a keepidle timer of a server (e ...