Inventor

John Mahrenholz

Inventor

Peosta, IA, US

Overview

11→

Patents

2014–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 11 as inventor

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

E02Fprimary

E02FDredging29%

F15BSystems acting by means of fluids in general14%

LOC1510%

A01GHorticulture5%

B60WConjoint control of vehicle sub-units of different type or different function5%

B66CCranes5%

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 load5%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges5%

F16DCouplings for transmitting rotation5%

F16HGearing5%

PatentTitleYear

11,028,557Attachment grade control for work vehicle2021 10,995,471Dozer blade for work vehicle2021 10,988,913Blade for work vehicle2021 10,975,547Two-dimensional attachment grade control for work vehicle2021 D0887454Compact track loader2020 10,443,628Boom control with integrated variable return metering2019 9,835,186Hydraulic flushing system and method2017 D0800183'Control grip'2017 D0744544'Control grip'2015 8,991,872'Fluid connection unit'2015 8,899,031'Cold start valve'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2021Patents assigned to DEERE & CO (11)· patent assignee history

2014–2015Patents assigned to MAHRENHOLZ JOHN R (2)· patent assignee history

2014Patents assigned to TURNIS JUSTIN J (1)· patent assignee history

2014–2019Based in Peosta, IA, US· patent location history

2015Patents assigned to DAVISDON MATTHEW (1)· patent assignee history

2020–2021Based in Dubuque, IA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DEERE & CO	11	2014–2021
MAHRENHOLZ JOHN Rself	2	2014–2015
DAVISDON MATTHEW	1	2015
TURNIS JUSTIN J	1	2014

Locations

Location	Patents	Span
Peosta, IA, US	6	2014–2019
Dubuque, IA, US	5	2020–2021