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
Polymers derived from benzobis(silolothiophene) and their use as organic semiconductors
Method and apparatus for visual neural stimulation
Organic light emitting diode device and fabrication method thereof
Modulation of TIM receptor activity in combination with cytoreductive therapy
Light-emitting device, film-forming method and manufacturing apparatus thereof, and cleaning method of the manufacturing apparatus
ESD protection device and method for producing the same
Method and system for providing geohazard information to customers
  Randomly Featured Patents
Safety detector for railroad switch points with remote contact mechanism
Process for the manufacture of 5-acetoacetylamino-benzimidazolone
Semi-interpenetrating polymer network scar treatment sheeting, process of manufacture and useful articles thereof
Handle for a knife
Phosphine compounds, transition metal complexes with the compounds contained as ligands therein, and asymmetric synthesis catalysts containing the complexes
High-volume-manufacture fuel cell arrangement and method for production thereof
Sanding sheet
Low dark current linear accelerator
Monitoring system and method used in automatic call distributor for timing incoming telephone calls
Organic light emitting diode display including source and drain electrodes separated from a gate electrode