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POTLATCH FORESTS INC

Overview
  • Total Patents
    71
About

POTLATCH FORESTS INC has a total of 71 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets machine tools, machines and packaging and shipping are SCHADE FREDERIK, JEDDELOH BROS SWEED MILLS INC and MEINAN MACHINERY WORKS.

Patent filings in countries

World map showing POTLATCH FORESTS INCs patent filings in countries
# Country Total Patents
#1 United States 54
#2 Canada 7
#3 Germany 4
#4 United Kingdom 4
#5 Finland 1
#6 Sweden 1

Patent filings per year

Chart showing POTLATCH FORESTS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Keller Harold A 9
#2 Bowling Robert T 7
#3 Mckean Herbert B 6
#4 Hayes Leonard L 6
#5 Smith John W 5
#6 Hayes L 3
#7 Young Patrick J 3
#8 Scheelke Gerald F 3
#9 Johnson Charles J 3
#10 Shelton Norman Thomas 2

Latest patents

Publication Filing date Title
US4154899A Production of porous, smooth, coated paper using high solids water-based coating compositions in blade coating apparatus
US3779543A Sheet material conveyor
US3724841A Sheet discharge mechanism
US3736967A Feeder for wood flaking or chipping machine
US3715257A Method for producing a flat particle-faced plywood panel
US3681174A Apparatus for automatically laying up plywood panels
US3687260A Edging picker
US3643715A Log positioning apparatus
US3652060A Fence
US3674434A Method and apparatus for determining lignin content
US3656612A Carton
US3674596A Method of laminating untreated wood to wood treated with fire retardant material
US3651961A Sheet material accumulator
US3642151A Sheet-handling apparatus
US3622150A Sheet conveying and stacking apparatus
US3584666A Apparatus for detection of obstruction between log and roller bar on veneer lathe assembly
US3620436A Folding carton top with sequential locking flaps
US3666592A Method for automatically laying up plywood panels
US3533518A Vacuum feeder for plywood veneer core sheets
US3613859A Indexing crossband veneer for automatic plywood layup equipment