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RATCLIFF RALPH A

Overview
  • Total Patents
    25
About

RATCLIFF RALPH A has a total of 25 patent applications. Its first patent ever was published in 1954. It filed its patents most often in United States and Canada. Its main competitors in its focus markets packaging and shipping, machines and mechanical elements are SPETSSHAKHTOMONTAZH PROIZV OBE, SO SHIYUNYUU and ANDRADE CIPRIANO JR.

Patent filings in countries

World map showing RATCLIFF RALPH As patent filings in countries
# Country Total Patents
#1 United States 15
#2 Canada 10

Patent filings per year

Chart showing RATCLIFF RALPH As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ratcliff Ralph A 25
#2 Ratcliff Bruce E 2
#3 Sears Jr John W 1

Latest patents

Publication Filing date Title
CA983677A Latching over-center load binder
US3901024A Claw type grab hook
CA990939A Over-center load binder with variable mechanical advantage
US3602065A Safety lever for load-sustaining device
US3648979A Cable rigging arrangement for hoist
US3656797A Hoist housing-hook combination
US3648978A Cable hoist
US3591141A Overcenter load binder
US3547407A Multiposition direct drive hoist
US3319991A Hook-thimble combination
US3271007A Over-center load binder
US3281121A Dielectric chain
US3193253A Load sustaining device
US3245660A Positive holding friction brake hoist
US2967046A Load bearing device
US2927358A Hoist hook having spring urged gate latching means
US2796651A Hoist hook safety gate
CA912417A Safety lever for load sustaining device
CA791916A Hook with lock or guard
CA758744A Over-center load binder