Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Circuit arrangement for an input keyboard

Circuit arrangement for an input keyboard

US Patent 4251805 · Granted Feb 17, 1981

Estimated economic value: $2,365,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Cooling system for a fuel cell module as part of an on-board power supply2005
Sintered contact material based on silver for use in power engineering switch-ge1993
Process for manufacturing wire or strip from high temperature superconductors an1992
Method for manufacturing melt materials of copper, chromium, and at least one re1990
Use of a fusion material of copper and chrome as the contact material for vacuum1988
Contact arrangement for vacuum switches with axial magnetic field, and method fo1987
Silver and metal oxides electrical contact material and method for making electr1986
Device for manufacturing laminated semifinished material1985
MOSFET Integrated delay circuit for digital signals and its use in color-televis1984
CMOS Circuit for converting a ternary signal into two binary signals, and use of1981
MOS-Binary-to-decimal code converter1981
Remote control arrangement using pulse spacing modulator1980