Inventor
VON HOLZEN RICHARD
CH4 patents
⚠️ This page may combine multiple inventors who share the name “VON HOLZEN RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BUCHER HYDRAULICS AG
3 patentsUS6971481B2Dec 6, 2005
Hydraulic elevator with motor controlled hydraulic drive and method for controlling the hydraulic elevator
BUCHER HYDRAULICS AG9 citations71
US7134528B2Nov 14, 2006
Hydraulic elevator with valve for preventing discharge of pressure accumulator and method of controlling same
BUCHER HYDRAULICS AG8 citations67
US7946391B2May 24, 2011
Hydraulic elevator without machine room
BUCHER HYDRAULICS AG3 citations58