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
Carbonation device
Method and apparatus for allocating and processing sequences in communication system
Hepatitis C virus inhibitors
Integrated water damage restoration system, sensors therefor, and method of using same
Beverage container
Multi-drive printed product processing device with verified feedback control
Method for depositing oxide thin films on textured and curved metal surfaces
  Randomly Featured Patents
Selection of an image or images most representative of a set of images
Cell phone position measurement system, position measurement method, and cell phone terminal
Process for the production of derivatives of saturated carboxylic acids
Trimming device for sewing machines
Aster plant named `Ariel`
Arc fault detector with circuit interrupter
Integrated fluorescene
Logic system for selectively reconfiguring an intersystem communication link
Temperature operated switch construction, terminal block therefor and methods of making the same
Phase locked loop with floating capacitor boost circuit