LexDanaLexDanabeta
Inventor

Douglas R. Fischer

Inventor
Dike, IA, US

Overview

5→
Patents
2004–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

B60Gprimary
B60GVehicle suspension arrangements20%
A01BSoil working in agriculture or forestry10%
B60DVehicle connections10%
F01PCooling of machines or engines in general10%
F02DControlling combustion engines10%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges10%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere10%
G01DMeasuring not specially adapted for a specific variable10%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%
PatentTitleYear
10,746,346Quick release universal mount20209,428,025'Axle suspension'20169,347,844'Three point hitch draft sensing system'20167,721,832'Walking beam suspension'20106,772,714'Electronic fan control'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2016Patents assigned to DEERE & CO (4)· patent assignee history
2004–2010Based in Parkersburg, IA, US· patent location history
2016Based in Dike, IA, US· patent location history
2020Patents assigned to FISCHER DOUGLAS (1)· patent assignee history
2020Based in Ottertail, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DEERE & CO42004–2016
FISCHER DOUGLASself12020
Locations
LocationPatentsSpan
Dike, IA, US22016
Parkersburg, IA, US22004–2010
Ottertail, Minnesota, US12020