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PERKINSON ROBERT H

Overview
  • Total Patents
    18
About

PERKINSON ROBERT H has a total of 18 patent applications. Its first patent ever was published in 2006. It filed its patents most often in United States. Its main competitors in its focus markets transport, engines, pumps and turbines and environmental technology are Noroyan Gevorg Serezhaevich, UPPERCU BURNELLI CORP and NIEUPORT ASTRA.

Patent filings in countries

World map showing PERKINSON ROBERT Hs patent filings in countries
# Country Total Patents
#1 United States 18

Patent filings per year

Chart showing PERKINSON ROBERT Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Perkinson Robert H 18
#2 Danielson David R 2
#3 Dowd Peter J 1
#4 Carvalho Paul A 1
#5 Soule Matthew C 1
#6 Holl Herbert J 1
#7 Arel David V 1

Latest patents

Publication Filing date Title
US2014120744A1 Retractable contact assembly
US2013052047A1 Variable output pump
US2013039764A1 Modular counter rotating propeller system
US2013039759A1 De-icing system for modular counter rotating propeller
US2012275924A1 Interlocking blade sheath
US2012183399A1 Method and apparatus for balancing wind turbines
US2012134800A1 Propeller pitchlock un-locking device
US2011286845A1 Hydraulic actuator locking device
US2011171027A1 Torque compensation for propeller pitch change mechanism
US2011142627A1 Teeter mechanism for a multiple-bladed wind turbine
US2011142646A1 Passive cyclic pitch control
US2011002786A1 Remote pitch controller for a variable pitch propeller
US2010310369A1 Pitch change actuation system for a counter-rotating propeller
US2010310368A1 Electrical system for driving a propeller pitch change mechanism
US2010021295A1 Controllable pitch propeller with electrical power generation
US2010202892A1 Thermal protection of rotor blades
US2010195948A1 Separator for bearing assemblies with cyclic loads
US2007212220A1 Controlled propeller pitch lock actuation system