WARREN CLOCK CO innovation strategy

Patent filings in countries

#	Industry
#1	Measurement
#2	Electrical machinery and energy
#3	Machines
#4	Digital networks
#5	Control
#6	Mechanical elements

#	Technology
#1	Electromechanical clocks
#2	Dynamo-electric machines
#3	Unspecified technologies
#4	Unspecified technologies
#5	Electric motor controls
#6	Mechanically-driven clocks
#7	Digital information transmission
#8	Systems controlling non-electric variables
#9	Gearing
#10	Measuring electric variables

#	Name	Total Patents
#1	Warren Henry E	45
#2	Warren Henry Ellis	4

Publication	Filing date	Title
US1529331A	1924-05-16	Electric clock system
US1522217A	1924-05-09	Continuous-motion clock
US1646269A	1924-01-04	Speed regulator
US1631713A	1923-09-21	Mercury-tube switch
US1564803A	1923-01-13	Clock
US1537395A	1922-11-14	Electric clock
US1508205A	1922-10-27	Clock motor
US1533678A	1922-09-27	Electric clock system
US1546269A	1922-09-11	Self-starting synchronous motor
US1522216A	1922-07-13	Frequency regulation
US1511071A	1922-06-14	Self-starting synchronous motor
US1495936A	1922-04-12	Motor drive
US1483536A	1922-02-27	Automatic regulator
US1456082A	1922-01-17	Motor drive
US1505925A	1921-12-12	Automatic regulation
US1495827A	1921-12-12	Self-starting synchronous motor
US1420896A	1920-10-02	Control system
US1430867A	1920-09-01	Lubricating system
US1420895A	1920-07-21	Time-indicating apparatus
DE396860C	1920-07-04	Electric time indicator