Inventor
William Hren
Inventor
Wauwatosa, WI, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E02Fprimary
E02FDredging76%
E21CMining or quarrying14%
Y10TTechnical subjects covered by former us classification7%
F16LPipes3%
PatentTitleYear
10,920,393Rope shovel with non-linear digging assembly202110,718,097Shovel handle with bail over dipper feature202010,156,053Boom and dipper handle assembly for an industrial machine20189,809,944'Reel system within boom'20179,297,140'Rope shovel'20169,103,097'Controlling a digging operation of an industrial machine'20159,074,354'Controlling a digging operation of an industrial machine'20159,009,994'Rope shovel with curved boom'20158,943,714'Shovel having a wristing dipper'20158,935,061'Controlling a digging operation of an industrial machine'20158,844,174'Dipper door latch with locking mechanism'20148,825,315'Controlling a digging operation of an industrial machine'20148,825,317'Controlling a digging operation of an industrial machine'20148,756,839'Rope shovel with curved boom'20148,620,536'Controlling a digging operation of an industrial machine'20138,590,180'Dipper door latch with locking mechanism'20138,571,766'Controlling a digging operation of an industrial machine'20138,560,183'Controlling a digging operation of an industrial machine'20138,359,143'Controlling a digging operation of an industrial machine'20138,355,847'Controlling a digging operation of an industrial machine'20138,136,272'Dipper door latch with locking mechanism'20126,434,862'Skewed dipper'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2021Based in Wauwatosa, WI, US· patent location history
2012–2020Patents assigned to HARNISCHFEGER TECH INC (20)· patent assignee history
2012–2015Patents assigned to HREN WILLIAM J (4)· patent assignee history
2013Patents assigned to COLWELL JOSEPH (3)· patent assignee history
2013Patents assigned to HREN WILLIAM (3)· patent assignee history
2018–2021Patents assigned to JOY GLOBAL SURFACE MINING INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HARNISCHFEGER TECH INC | 20 | 2012–2020 |
| HREN WILLIAM Jself | 4 | 2012–2015 |
| COLWELL JOSEPH | 3 | 2013 |
| HREN WILLIAMself | 3 | 2013 |
| JOY GLOBAL SURFACE MINING INC | 3 | 2018–2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wauwatosa, WI, US | 22 | 2002–2021 |