Inventor

SCHAEFER MARK D

US4 patents

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

FISKARS INC

1 patent

US5933965AAug 10, 1999

Extendable tool

FISKARS INC53 citations93

VAN DE LAARSCHOT KEITH

1 patent

US6790163B1Sep 14, 2004

Swim stroke exercise device

VAN DE LAARSCHOT KEITH94 citations89

ALTERRA HOLDINGS CORP

1 patent

US6272755B1Aug 14, 2001

Extendable tool lock

ALTERRA HOLDINGS CORP18 citations88

ORBIS CORP

1 patent

US9376255B2Jun 28, 2016

Waste container with gravity latch

ORBIS CORP8 citations79