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
Detachably integrated battery charger for mobile cell phones and like devices
System and method for stranded file opens during disk compression utility requests
Method and system for testing indirect bandgap semiconductor devices using luminescence imaging
Bicycle carrier
Method for eliciting an immune response to human telomerase reverse transcriptase
Process for making thermoplastic polymer pellets
Clusterin antisense therapy for treatment of cancer
  Randomly Featured Patents
Pallet dispenser
Dough moulding and apparatus for dough moulding with air cushion chute
Systems and methods for implementing keno-type wagering games and related promotions
Polymeric compositions including microwave energy sensitizing additives
Module interconnection testing scheme
Current source for rapid switching and reduced oscillatory transients
Titanium compounds
Method and apparatus for power supplying capable of effectively eliminating overshoot voltage
Chain with selectivity engaged links
Refrigerating apparatus