Inventor

David W. Petronek

Inventor

Boring, OR, US

Overview

8→

Patents

1992–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B66Fprimary

B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load53%

F15BSystems acting by means of fluids in general27%

G01GWeighing13%

G01BMeasuring length, thickness or similar linear dimensions7%

PatentTitleYear

10,900,825Equalized hydraulic clamp force control2021 10,494,241Hydraulic clamping systems having load side-shifting variably responsive to load weight2019 9,964,428Equalized hydraulic clamp force control2018 9,309,099'Side-shift limiter'2016 8,979,154'Clamping attachment with regenerative hydraulic circuit'2015 8,403,618'Lift truck load handler'2013 8,091,467'Hydraulic valve circuit with damage-control override'2012 5,096,363'Multiple-pair fork positioner'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2021Patents assigned to CASCADE CORP (8)· patent assignee history

1992Based in Sandy, OR, US· patent location history

2012–2018Patents assigned to PETRONEK DAVID W (2)· patent assignee history

2012–2021Based in Boring, OR, US· patent location history

2013Patents assigned to ARMONY PATRICK A (1)· patent assignee history

2013Patents assigned to PETRONEK DAVID (1)· patent assignee history

2013Patents assigned to PRENTICE GLENN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CASCADE CORP	8	1992–2021
PETRONEK DAVID Wself	2	2012–2018
ARMONY PATRICK A	1	2013
PETRONEK DAVIDself	1	2013
PRENTICE GLENN	1	2013

Locations

Location	Patents	Span
Boring, OR, US	7	2012–2021
Sandy, OR, US	1	1992