Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Bartholow; Paul A.
Address:
St. Louis Park, MN
No. of patents:
2
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
Secure service for enabling communication for calling party when communication service for called party is suspended
Plants and seeds of corn variety CV577261
Methods and apparatus for providing video on demand and network PVR functions using IP streaming
Hand sign
System and method for discontinuous reception control start time
Neurostimulation system
LED illumination control using a simple digital command structure
  Randomly Featured Patents
Computed tomography apparatus and method for operating same
Method and system for software product generation and maintenance
Sonar fish and bottom finder and display
Method of making doped semiconductor film having uniform impurity concentration on semiconductor substrate
Plate type condensers
Audio loudness control system
Electronic apparatus and printed wiring board
Highly stable ankle brace
Convertible high chair
Performance monitoring of a computer resource