Learn more

STUBNITZ GREENE SPRING CORP

Overview
  • Total Patents
    58
About

STUBNITZ GREENE SPRING CORP has a total of 58 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets transport, furniture and games and electrical machinery and energy are RENTROP GMBH P A, BRANDOLI LUIGI and CHARTERS J D.

Patent filings in countries

World map showing STUBNITZ GREENE SPRING CORPs patent filings in countries
# Country Total Patents
#1 United States 35
#2 Canada 21
#3 United Kingdom 2

Patent filings per year

Chart showing STUBNITZ GREENE SPRING CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Maurice Stubnitz 15
#2 Caughey John M 11
#3 Stubnitz Maurice 10
#4 Slocum Charles W 5
#5 Davis Harlan L 4
#6 Greene Daniel A 3
#7 Smith Charles C 3
#8 Wallace Page John 1
#9 Page John W 1
#10 Stern Lewis J 1

Latest patents

Publication Filing date Title
US2874344A Hermetic motor starting and overload protection system
US2909216A Spring seat
US2880787A Seat springs
US2754892A Seat back spring
US2781485A Thermally controlled electric switches
US2781484A Thermally controlled automatic switches
US2649897A Spring and air cushion seat
US2622662A Spring and air cushion
US2676647A Seat spring assembly
US2671498A Seat spring cushion of the air cushion type
US2677398A Machine for crimping wire for spring wire stringers and for forming loop springs on the ends of the wires
US2646086A Machine for crimping the bottom coils of coil springs
US2609036A Automobile seat spring
GB672444A Seat spring
GB669700A Improvements in or relating to seat springs
US2649896A Spring seat cushion
US2649895A Seat back spring
US2682296A Seat bottom spring
US2642930A Seat bottom spring
US2685329A Seat spring