Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Proximity sensor with reduced temperature sensitivity using A.C. and D.C. energy

Proximity sensor with reduced temperature sensitivity using A.C. and D.C. energy

US Patent 5180978 · Granted Jan 19, 1993

Estimated economic value: $4,020,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Card printing mechanism with card return path2022
System, apparatus and method for auto-replenishment and monitoring of a medical 2020
Print head with split rendering of print jobs2020
Drop-on-demand identification document printing with surface pre-treatment2020
Drop-on-demand identification document printing with surface pre-treatment2020
Card production system inserter with insert printer2019
Card printing mechanism with card return path2019
Multi-protocol smart card programming2019
Card printing mechanism with card return path2018
Method for determining pixel dropout2017
Card production system inserter with insert printer2016
Method for determining pixel dropout2015