Resources Contact Us Home
Browse by Category: Main > Business
Class Information
Number: 434/228
Name: Education and demonstration > Occupation > Keyboard operation (e.g., typing, key punching, etc.) > Means for selectively illuminating character on simulated keyboard
Description: Subject matter including a replica (such as a display panel) of an actual keyboard, with a light associated with each key or representation so that a character can be illuminated to indicate that it is to be typed.

Patents under this class:

Patent Number Title Of Patent Date Issued
7209730 Telephone adapted for emergency dialing by touch Apr. 24, 2007
6941125 Telephone adapted for emergency dialing by touch Sep. 6, 2005
5011412 Educational keyboard with removable keys Apr. 30, 1991
4468203 Classroom demonstration calculator Aug. 28, 1984
4378217 Terminal trainer keyboard and display apparatus for teaching keyboard operations and knowledge items Mar. 29, 1983

  Recently Added Patents
Bias voltage generating circuit and switching power supply thereof
Alternate source programming
Methods and apparatus for achieving multiple bit rates in passive optical networks
Piperazinyl methyl phenyl cyclohexane compound
Transcoded images for improved trick play
Cellulose derivative and hydrogel thereof
Multi-channel memory system including error correction decoder architecture with efficient area utilization
  Randomly Featured Patents
Staged oxidation chamber for enhanced nitrogen and sulfur detection
Renewable option accounting and marketing system
Surgical reamer
Tablet package conveying apparatus for tablet automatic packing machine
Thermally developable emulsions and materials containing heterocyclic disulfide compounds
Radio receiver with tape deck having interrupt capability
Automated disambiguation of fixed-serverport-based applications from ephemeral applications
Method and apparatus for recognizing cursive writing from sequential input information
Method for detecting diseases that are associated with defects of cystic fibrosis transmembrane conductance regulator (CFTR) protein
Method and apparatus for dispensing a fluid using a fluid-operated timer