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PATENT DEV COMPANY

Overview
  • Total Patents
    25
About

PATENT DEV COMPANY has a total of 25 patent applications. Its first patent ever was published in 1901. It filed its patents most often in United States, Canada and Spain. Its main competitors in its focus markets mechanical elements, machines and transport are WOODHEAD LTD JONAS, TRELLEBORG AUTOMOTIVE GERMANY and F I B E T S P A.

Patent filings in countries

World map showing PATENT DEV COMPANYs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 7
#3 Spain 3
#4 France 3
#5 Germany 2

Patent filings per year

Chart showing PATENT DEV COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Palmer Dale A 6
#2 Mcintyre Brouwer D 5
#3 Whisler Ralph H Jr 3
#4 Whisler Jr Ralph H 3
#5 Mcintyre William D 2
#6 Mcintyre William Davis 1
#7 Smith Charles J 1
#8 Jun Ralph H Whisler 1
#9 John Dutton 1
#10 Vanstone Samuel 1

Latest patents

Publication Filing date Title
DE976628C Hydraulic shock absorber
US2546051A Shock absorber
US2546038A Shock absorber construction
ES193149A1 Improvements in hydraulic shock absorbers
US2669188A Pump impeller
US2697496A Shock absorber valve construction
US2699844A Shock absorber construction
US2616711A Shock absorber valve
US2648405A Piston assembly for shock absorbers
US2653682A Shock absorber
US2653681A Shock absorber
US694808A Forging-machine.
CA596829A Stabilizer and spring device
CA481693A Shock absorber
CA483039A Shock absorber construction
CA517644A Shock absorber
CA490820A Piston assembly for shock absorbers
CA517643A Shock absorber
CA517642A Shock absorber and vehicle mounting arrangement therefor