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HAZEMEIJER BV

Overview
  • Total Patents
    473
About

HAZEMEIJER BV has a total of 473 patent applications. Its first patent ever was published in 1963. It filed its patents most often in Netherlands, Germany and France. Its main competitors in its focus markets electrical machinery and energy, measurement and mechanical elements are ITE INDUSTRIES LTD, DELLE ATEL CONST ELECTR and WILLIAM HENRY ILLINGWORTH.

Patent filings in countries

World map showing HAZEMEIJER BVs patent filings in countries

Patent filings per year

Chart showing HAZEMEIJER BVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Griesen Bertus 18
#2 Lipperts Joseph Hubertus Franc 17
#3 Has Peter Victor 14
#4 Lammers Arend Jan Willem 12
#5 Lipperts J H F G 12
#6 Clason Jan Christiaan 12
#7 Lipperts Joseph H F G 11
#8 Van Der Scheer Derk 9
#9 Groenenboom Maarten 8
#10 Clason J C 8

Latest patents

Publication Filing date Title
NL8400873A Vacuum switch, equipped with horseshoe-organs for generating an axial magnetic field.
IE840327L Apparatus for moving an element between two end positions by¹means of an energy buffer and keeping the element in the end¹positions
IE832480L Device for moving an element between two end positions
NL8303319A Active double-sided radiator.
NL8303244A Electric switch.
NL8303245A Electrical distribution system.
NL8302135A Quick-acting overcurrent circuit breaker - has contact arm controlled by armature interconnected by extension at right angles with locking arm (NL 25.11.80)
NL8301755A Control assembly with a control shaft and a locking bush.
NL8300953A End cap construction for high voltage melt safety.
NL8300581A Composition for a current limiting high voltage melt safety.
NL8300560A Apparatus for moving an element between two end positions by means of an energy buffer and holding the element in these end positions.
NL8204297A Counter contacts, especially for a knife contact of a knife pattern and method for manufacturing the same.
NL8204110A Apparatus for moving an element between two end positions by means of an energy buffer.
US4628393A Method for switching in a three-phase high voltage circuit
NL8006660A Fuse holder for distribution panel - adaptable to ambient conditions, having number of heat sinks formed from U=profile sheets bolted in stacks
NL8002541A Earth leakage detector for AC supplies - uses current transformer and magnetically-operated switch cutting off supply when flux from two coils varies
NL8000845A Tools such as wrench or screwdriver with torque limiting on tightening.
NL7908547A Tools such as wrench or screwdriver with torque limiting on tightening.
NL7905720A METHOD FOR IMPROVING switch contacts, in particular for vacuum switches.
NL7904563A Protection device for selectively switching off network sections of an electric energy distribution network and an energy distribution network provided with multiple selective protection devices.