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R L CRAIN LTD

Overview
  • Total Patents
    13
About

R L CRAIN LTD has a total of 13 patent applications. Its first patent ever was published in 1954. It filed its patents most often in Canada and United States. Its main competitors in its focus markets textiles and paper, packaging and shipping and machines are SPIEGEL MAY STERN CO, JOSEPH ZALKIND and UARCO INC.

Patent filings in countries

World map showing R L CRAIN LTDs patent filings in countries
# Country Total Patents
#1 Canada 11
#2 United States 2

Patent filings per year

Chart showing R L CRAIN LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dorrow Henry E 5
#2 Crain Harold F 2
#3 Dorrow H Eldon 2
#4 Wright Duane H 1
#5 Wilmore Jack C 1
#6 Wright Duane 1
#7 Dorrow H 1

Latest patents

Publication Filing date Title
CA937905A Envelope assembly with insert material
US3112125A Continuous form marginal connections
US2875689A Strip printer and burster
CA794233A Continuous form library index cards
CA609031A Strip severing machine
CA790434A Manifold envelope assembly
CA651774A Continuous from marginal connections
CA812209A Feed means for wave guide
CA846952A Glueing of forms
CA733869A Side deleaver
CA898125A Process and feed means for producing a manifolded form
CA804877A Matching document and stub and method and apparatus for printing same
CA795210A Matching document and stub and method and apparatus for printing same