Inventor
HREN WILLIAM J
US13 patents
⚠️ This page may combine multiple inventors who share the name “HREN WILLIAM J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HARNISCHFEGER TECH INC
5 patentsUS8844174B2Sep 30, 2014
Dipper door latch with locking mechanism
HARNISCHFEGER TECH INC6 citations81
US10718097B2Jul 21, 2020
Shovel handle with bail over dipper feature
HARNISCHFEGER TECH INC3 citations66
US9009994B2Apr 21, 2015
Rope shovel with curved boom
HARNISCHFEGER TECH INC2 citations59
US9297140B2Mar 29, 2016
Rope shovel
HARNISCHFEGER TECH INC2 citations55
US9809944B2Nov 7, 2017
Reel system within boom
HARNISCHFEGER TECH INC1 citations49
HREN WILLIAM J
4 patentsUS8590180B2Nov 26, 2013
Dipper door latch with locking mechanism
HREN WILLIAM J21 citations89
US8136272B2Mar 20, 2012
Dipper door latch with locking mechanism
HREN WILLIAM J20 citations89
US8943714B2Feb 3, 2015
Shovel having a wristing dipper
HREN WILLIAM J10 citations82
US8756839B2Jun 24, 2014
Rope shovel with curved boom
HREN WILLIAM J12 citations80
JOY GLOBAL SURFACE MINING INC
3 patentsUS10920393B2Feb 16, 2021
Rope shovel with non-linear digging assembly
JOY GLOBAL SURFACE MINING INC2 citations71
US11242669B2Feb 8, 2022
Systems and methods for controlling machine ground pressure and tipping
JOY GLOBAL SURFACE MINING INC0 citations59
US11885221B2Jan 30, 2024
Shovel stabilizer appendage
JOY GLOBAL SURFACE MINING INC0 citations51