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
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
Television receiver
Flame-protected impact-modified polycarbonate compositions
Method and apparatus for filter-less class D audio amplifier EMI reduction
Floribunda rose plant named `KORamflusa`
Feedback method and processing system for policy installation failures
UV exposure method for reducing residue in de-taping process
  Randomly Featured Patents
Medical injector
Plastic corrugated tube with integrally molded sleeve coupler
Filter cartridge and a method for its manufacture
Handheld coded data reader
Electric motor, especially wiper motor for driving a windshield wiper system in a motor vehicle
Electric refrigerator
Method of removing formed parts from a die
RNA interference mediated inhibition of NOGO and NOGO receptor gene expression using short interfering nucleic acid (siNA)
Haloaryl halobenzenesulfonate flame retardants
Exposure head with spatial light modulator