Inventor

HARPER CLIFF

US3 patents

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

HARPER CLIFF

2 patents

US4836783AJun 6, 1989

Activity kit

HARPER CLIFF61 citations90

US4786073ANov 22, 1988

Foldable trailer

HARPER CLIFF104 citations90

WASTE INNOVATION CONCEPTS LLC

1 patent

US9920511B2Mar 20, 2018

Methods, systems, and software for providing a blocked sewer alert

WASTE INNOVATION CONCEPTS LLC6 citations64