ZELINA WILLIAM B

Overview

Total Patents

12

About

ZELINA WILLIAM B has a total of 12 patent applications. Its first patent ever was published in 1964. It filed its patents most often in Canada, United Kingdom and Brazil. Its main competitors in its focus markets electrical machinery and energy, measurement and environmental technology are ITHERM TECHNOLOGIES LP, WUXI GUOWEI CERAM ELECTRIC APPLIANCE CO LTD and LIGHT LTD E.

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Patent filings in countries

World map showing ZELINA WILLIAM Bs patent filings in countries

#	Country	Total Patents
#1	Canada	4
#2	United Kingdom	2
#3	Brazil	1
#4	EPO (European Patent Office)	1
#5	Spain	1
#6	Portugal	1
#7	United States	1
#8	WIPO (World Intellectual Property Organization)	1

Patent filings per year

Chart showing ZELINA WILLIAM Bs patent filings per year from 1900 to 2020

Similar Companies

ITHERM TECHNOLOGIES LP 100% similarity

WUXI GUOWEI CERAM ELECTRIC APPLIANCE CO LTD 100% similarity

LIGHT LTD E 100% similarity

WUXI ORG MICROELECTRONICS CO LTD 100% similarity

SO YU-SHENG 100% similarity

RUBBRIGHT GROUP INC 100% similarity

KOEGLER ADALBERT 100% similarity

THERMAFLEX LTD 100% similarity

TRIDONICATCO SCHWEIZ AG 100% similarity

B & S ELEKTRONISCHE GERAETE GM 100% similarity

Focus industries

#	Industry
#1	Electrical machinery and energy
#2	Measurement
#3	Environmental technology

Focus technologies

#	Technology
#1	Special electric heating or lighting
#2	Measuring electric variables
#3	Climate change mitigation in buildings

Top inventors

#	Name	Total Patents
#1	Zelina William B	9
#2	Zelina Francis J	5
#3	Buchanan James L	2

Latest patents

Publication	Filing date	Title
ES8506963A3	1983-12-05	Line operated fluorescent lamp inverter ballast
PT75660A	1982-10-08	Line operated fluorescent lamp inverter ballast circuit
CA1191540A	1982-07-05	Line operated fluorescent lamp inverter ballast
US4459516A	1982-06-25	Line operated fluorescent lamp inverter ballast
GB1068477A	1964-08-04	Direct current measuring circuits
CA778923A	None	Direct current measuring circuit
CA776331A	None	Cooling arrangement for electronic devices
CA809793A	None	Voltage regulator for dynamoelectric machines