Learn more

PLESSEY BTR LTD

Overview
  • Total Patents
    22
About

PLESSEY BTR LTD has a total of 22 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets computer technology, telecommunications and basic communication technologies are GLICKMAN ERAN, SAINFOTECH CO and SAMBO COMPUTER CO LTD.

Patent filings in countries

World map showing PLESSEY BTR LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 10
#2 United States 4
#3 Canada 2
#4 Germany 2
#5 France 2
#6 Netherlands 1
#7 Sweden 1

Patent filings per year

Chart showing PLESSEY BTR LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Davis John Christopher Hammond 3
#2 Cotton John M 3
#3 Cosserat David C 2
#4 Michael Cotton John 2
#5 Purton Raymond Frederick 2
#6 Leathers John William 2
#7 Goodier Martin J 2
#8 Cotton John Michael 2
#9 Boom Roger J 2
#10 Wolff Charles Henry 1

Latest patents

Publication Filing date Title
US3604443A Fluidic oscillators
GB1177570A Improvements in or relating to Pure Fluid Logic Elements.
GB1181985A Improvements in or relating to Fluid Sensing Devices
GB1176413A Improvements in Amplitude Compression Arrangements suitable for use in Electrical Signalling Systems
GB1194551A Improvements in Electrical Signalling Systems
GB1178539A Improvements in Timing Arrangements for Electrical Signalling Systems
GB1181789A Improved Fluid Device
GB1186516A Improvements in Electrical Signalling Systems Employing Pulse Code Modulation
GB1187976A Improvements in the Manufacture of Recesses of Rectangular Cross-Section Using an Abrasive Jet.
GB1188284A Improvements in Signalling Systems
CA901676A Stored-programme controlled data-processing systems
CA894450A Data processing systems