Resources Contact Us Home
Bartholow; Paul A.
St. Louis Park, MN
No. of patents:

Patent Number Title Of Patent Date Issued
5600348 Adjustable tip light pen February 4, 1997
A light pen for use in data imput to data processing equipment, has an adjustable tip assembly wherein the tip switch sensitivity and tactile feel or feedback to the user can be varied according to user preferences and particular applications. In one mode, the pen can be set for a normal
4677428 Cordless light pen June 30, 1987
A cordless light pen for use with a cathode ray tube display screen as a data input for a digital computer. Contained within the exterior barrel of the pen is a depressible tip having a core made from a plastic which has been treated and whose index of refraction causes light entering in

  Recently Added Patents
Asset control in location tracking system
Method to calibrate RF paths of an FHOP adaptive base station
Device and implantation system for electrical stimulation of biological systems
Plants and seeds of hybrid corn variety CH089600
Bi-directional, compact, multi-path and free space channel replicator
Large carrying case
Discharge lamp comprising coated electrode
  Randomly Featured Patents
Semiconductor device having multiple sized memory arrays
Portable hydromassage apparatus
Liquid crystal display device and electronic apparatus
Suction cleaner power nozzle construction
Elongated golf club putter
Robust techniques for optimal upstream communication between cable modem subscribers and a headend
Thermoplastic elastomer composition which has a shore a hardness of less than 45
Long distance telephone switching system with enhanced subscriber services
Speech information freeze-out control method and equipment in mobile satellite communication system
Universal breaker