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ROBBINS WILLIAM K

Overview
  • Total Patents
    15
About

ROBBINS WILLIAM K has a total of 15 patent applications. Its first patent ever was published in 1939. It filed its patents most often in United States and Canada. Its main competitors in its focus markets mechanical elements and machines are SCHMIEDESTUECK VERTRIEB FEUERSTEIN GMBH, SUZHOU UNIVERSAL CHAIN TRANSMISSION CO LTD and KOVALCHUK VOLODYMYR.

Patent filings in countries

World map showing ROBBINS WILLIAM Ks patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 2

Patent filings per year

Chart showing ROBBINS WILLIAM Ks patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Robbins William K 15

Latest patents

Publication Filing date Title
US3121308A Branch connector link for non-kinking chains
US3208495A Nut lock including a washer arm for engaging a bolt thread
US3139720A Connecting means for chain links and the like
US3068637A Detachable link connector having laterally removable cross bar
US2979886A Chain link having two-piece spacing stud
US2877621A Three piece separable section chain connector and the like
US3031219A Interlocked joint having removable abutment in lateral compression
US2525724A Chain link
US2406712A Chain link
US2385232A Chain link
US2357768A Chain repair link
US2262653A Chain repair link
US2216831A Chain repair link
CA514503A Connecting link for chains and the like
CA543514A Nut with resilient biting tooth locking means