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GRIFFITH LAWRENCE

Overview
  • Total Patents
    20
About

GRIFFITH LAWRENCE has a total of 20 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States, Canada and Austria. Its main competitors in its focus markets transport, civil engineering and it methods for management are NAT RAILROAD PASSENGER CORP, VOLKER STEVIN RAIL & TRAFFIC B and GE TRANSP SYSTEMS GLOBAL SIGNA.

Patent filings in countries

World map showing GRIFFITH LAWRENCEs patent filings in countries
# Country Total Patents
#1 United States 15
#2 Canada 2
#3 Austria 1
#4 United Kingdom 1
#5 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing GRIFFITH LAWRENCEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Griffith Lawrence 20
#2 Wilson Cameron 2
#3 Johnson Walid 2
#4 Tarazona Carlos M 2
#5 Humphrey Thomas W 2

Latest patents

Publication Filing date Title
US2009276307A1 Product couponing and sampling method
US1178715A Tobacco-box.
US1174493A Insulated rail-joint.
US1107666A Insulated rail-joint.
US1064900A Insulated rail-joint.
US1052244A Insulated rail-joint.
CA137046A Rail joint
US969856A Insulated rail-joint.
US814537A Safety device for railway switch and signal apparatus.
US799558A Locking device for railway-traffic-controlling apparatus.
CA91056A Electric switch and signal
US814658A Safety device for railway switch and signal apparatus.
US813882A Electric switch and signal apparatus.
US814535A Electric signal apparatus.
US776238A Electric switch and signal apparatus.
US779156A Railroad switch and signal.
GB190307470A Improvements in or relating to Pneumatic Apparatus and Valves therefor Adapted for use in Operating Railway Signals and Switches and for other similar Purposes.
US724180A Pneumatic switch apparatus and valve therefor.