Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Envelope holder

Envelope holder

US Patent 4869485 · Granted Sep 26, 1989

Estimated economic value: $7,583,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

System for machine control2018
Method of operating a magnetic compass on a machine2013
Machine control and guidance system incorporating a portable digital media devic2012
Light detector for multi-axis position control2002
Cartridge and printer system for using roll print media1990