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PORTER WELLINGTON W

Overview
  • Total Patents
    22
About

PORTER WELLINGTON W has a total of 22 patent applications. Its first patent ever was published in 1945. It filed its patents most often in Canada and United States. Its main competitors in its focus markets agriculture and chemical engineering are NIEWOEHNER KG MASCHF, UNDERHAUGS FABRIKK AS and HAGEDORN GEB & CO.

Patent filings in countries

World map showing PORTER WELLINGTON Ws patent filings in countries
# Country Total Patents
#1 Canada 11
#2 United States 11

Patent filings per year

Chart showing PORTER WELLINGTON Ws patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Porter Wellington W 22

Latest patents

Publication Filing date Title
US4156465A Harvesting machine with self-cleaning conveyor chains
CA1057512A Method and structure for automatically separating unwanted materials from machine harvested tomatoes
US4089421A Method and structure for automatically separating unwanted materials from machine harvested tomatoes
US3999613A Tomato harvester header
US3190471A Harvester unloader
US3159292A Harvester
US2956385A Vine stripping harvester
US2706374A Reciprocating cutter assembly
US2729049A Pickup with belt stripping means
US2674838A Adjustable vine harvesting device
US2614379A Harvester for pea vines and the like
US2524077A Pea harvester and loading machine
CA782231A Harvester
CA527360A Adjustable vine harvesting device
CA810505A Harvest shaker
CA527361A Harvester
CA527362A Adjustable vine harvesting device
CA701097A Harvester
CA871971A Deleafer
CA769531A Harvest unloader