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WATSON STILLMAN CO

Overview
  • Total Patents
    41
About

WATSON STILLMAN CO has a total of 41 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets machines, machine tools and engines, pumps and turbines are BOONTON MOLDING COMPANY, SOUCEK VACLAV and SANPUKU KOGYO KK.

Patent filings in countries

World map showing WATSON STILLMAN COs patent filings in countries
# Country Total Patents
#1 United States 36
#2 United Kingdom 3
#3 Canada 2

Patent filings per year

Chart showing WATSON STILLMAN COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dinzl Richard W 20
#2 Knowles Edward R 5
#3 Farley Francis S 2
#4 Davis Jr Frank L 2
#5 Stillman Edwin A 2
#6 Frederick Klein 1
#7 Biach John L 1
#8 Fred Kamena 1
#9 Rutherford Royal Robert 1
#10 John Lauterbach 1

Latest patents

Publication Filing date Title
US2830700A Extrusion press run-out table
US2627630A Injection molding machine
US2493805A Injection molding machine
US2462308A Injection molding machine
US2444339A Molding machine
US2433654A Injection molding machine
US2439966A Injection molding
US2266415A Press
US2273516A Injection molding machine
US2304461A Injection molding apparatus
US2256079A Swash plate mechanism
US2308867A Injection device for injection molding machines
US2298044A Molding machine
US2298043A Molding machine
US2243188A Liquid level control
US2256081A Mold-charging apparatus
US2230288A Hydraulic press
US2244842A Injection molding machine
US2227265A Hydraulic molding press
US2188076A Extrusion press