Inventor
GOERTZEN GEROLD G
13 patents
⚠️ This page may combine multiple inventors who share the name “GOERTZEN GEROLD G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INVACARE CORP
7 patentsUS6302107B1Oct 16, 2001
Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization
INVACARE CORP163 citations98
US5988165ANov 23, 1999
Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization
INVACARE CORP203 citations98
US5575348ANov 19, 1996
Powered wheelchair with adjustable center of gravity and independent suspension
INVACARE CORP158 citations98
US5853059ADec 29, 1998
Powered wheelchair with adjustable center of gravity and independent suspension
INVACARE CORP115 citations97
US5971482AOct 26, 1999
Constant center of gravity tiltable chair of a wheelchair
INVACARE CORP45 citations93
US5522734AJun 4, 1996
Apparatus for interconnecting wheelchair batteries
INVACARE CORP51 citations92
US6357776B1Mar 19, 2002
Constant center of gravity tiltable chair of a wheelchair
INVACARE CORP53 citations89
ROPER CORP
4 patentsUS4392538AJul 12, 1983
Adjustable handle assembly for walk-behind garden implement
ROPER CORP50 citations92
US4402365ASep 6, 1983
Garden tiller with vegetation sloughing means
ROPER CORP12 citations73
US4706761ANov 17, 1987
Tilling machine with pivotal bi-directional operative tines
ROPER CORP14 citations71
US4372397AFeb 8, 1983
Garden tiller with extended tine shield
ROPER CORP13 citations71