Inventor

HARDER JOHN

US6 patents

⚠️ This page may combine multiple inventors who share the name “HARDER JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

(unassigned)

2 patents

US5831519ANov 3, 1998

Traffic supervision system for vehicles

64 citations89

US5924653AJul 20, 1999

Traffic control system and method of controlling the movement of a mobile unit

24 citations85

HARDER JOHN

1 patent

US4655448AApr 7, 1987

Exercise apparatus

HARDER JOHN24 citations75

RIO PRODUCTS INTL INC

1 patent

US7406797B2Aug 5, 2008

Super high floating line

RIO PRODUCTS INTL INC3 citations51

BALCO INC

1 patent

US12318642B2Jun 3, 2025

Modular construction fire stop assembly

BALCO INC0 citations48

RIP LLC

1 patent

US7563485B2Jul 21, 2009

Method of manufacturing a super high floating line

RIP LLC1 citations40