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WALKER ROGER BOYD

Overview
  • Total Patents
    13
About

WALKER ROGER BOYD has a total of 13 patent applications. Its first patent ever was published in 1981. It filed its patents most often in Brazil, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and thermal processes are SPRINTEX AUSTRALASIA PTY LTD, FRIEND JOHN EDWARD and ZEROQ BEIJING SCIENCE & TECHNOLOGY CORP.

Patent filings in countries

World map showing WALKER ROGER BOYDs patent filings in countries
# Country Total Patents
#1 Brazil 6
#2 WIPO (World Intellectual Property Organization) 3
#3 EPO (European Patent Office) 2
#4 Australia 1
#5 Italy 1

Patent filings per year

Chart showing WALKER ROGER BOYDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Walker Roger Boyd 12
#2 Boyd Walker Roger 1

Latest patents

Publication Filing date Title
AU1016283A Charging and distributing device for two stroke engine
IT8268354D0 Rotary piston compressor or expander
WO8301491A1 Rotary piston compressors and expanders
BR8203281A Pump to compress or expand fluids
BR8203103A Belts for continuous variation transmissions
BR8108009A Machine for compressing steam and expanding liquid in a steam compression cooling cycle and process to regulate the pressure and temperature of this and other steam compression systems
BR8107901A Dosing pumps and distributing tubes to supply explosion engine cylinders
BR8106682A Air cycle refrigeration machine
BR8106243A Pump to compress or expand fluids and a mechanism to regulate flow in this and other types of compressors