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SESSIONS CLOCK CO

Overview
  • Total Patents
    45
About

SESSIONS CLOCK CO has a total of 45 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United States and Canada. Its main competitors in its focus markets measurement, machines and electrical machinery and energy are INGRAHAM E CO, LUX CLOCK MFG COMPANY INC and PERRET DAVID.

Patent filings in countries

World map showing SESSIONS CLOCK COs patent filings in countries
# Country Total Patents
#1 United States 34
#2 Canada 11

Patent filings per year

Chart showing SESSIONS CLOCK COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Samuel Mazur 7
#2 Stephenson Thomas B 4
#3 Fox William C 4
#4 Brightman Earl D 4
#5 Schoonmaker Lewis E 4
#6 Mazur Samuel 3
#7 Caton Bradley 2
#8 Leitton William H 2
#9 Clark Harold L 2
#10 Haydon Arthur W 2

Latest patents

Publication Filing date Title
US3416014A Unidirectional starting mechanism for synchronous a.c. self-starting motors
US3249931A Elapsed time indicator
US3185874A Adjustable cycle percentage timer
US3016686A Collapsible adjusting knob
US2976674A Open-face clock
US2826651A Timing devices
US2922932A Magnetic coils
US2905778A Timing mechanism
US2814188A Setting clutch for registers
US2800373A Self-lubricating bearing
US2664155A Timing device
US2669618A Snap-action device
US2471549A Electric alarm clock
US2522844A Combined bushing and anchor for electric wires
US2317902A Bearing for miniature electric motors
US2211426A Electric alarm clock
US2258474A Interval timer
US1963094A Self-starting synchronous electric motor
US1981000A Non-self-starting synchronous electric motor
US1936684A Starting means for electric clocks