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ACRA PLANT

Overview
  • Total Patents
    39
About

ACRA PLANT has a total of 39 patent applications. Its first patent ever was published in 1962. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets agriculture, environmental technology and mechanical elements are ROTACON ENGINEERING LTD, SUMO UK LTD and SULKY BUREL SA.

Patent filings in countries

World map showing ACRA PLANTs patent filings in countries
# Country Total Patents
#1 United States 19
#2 Canada 9
#3 Australia 5
#4 South Africa 5
#5 United Kingdom 1

Patent filings per year

Chart showing ACRA PLANTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Williams Donald E 25
#2 Robertson Forrest E 22
#3 Williams Robert A 9
#4 Williams D 3
#5 Bell William A 2
#6 Robertson Forrest F 1
#7 Gigot C Dean 1
#8 Gigot Terry K 1
#9 Garst D 1
#10 Embree Gary L 1

Latest patents

Publication Filing date Title
US5370070A Narrow profile soil opening device for agricultural material placement
CA2063913A1 Subsoiler having rearwardly disposed soil fracturing structure
US5255617A Ridge preparation tool for seed planting equipment
US5165487A Deep ripper point
CA1311652C Soil opening point for seed or fertilizer placement
US4867248A Shank mounting assembly for soil opening point
US4773340A Subsoil applicator
ZA8500661B Furrow opener and follower blade
CA1231868A Furrow opener and follower blade
US4598654A Furrow opener and follower blade
AU2523984A Seeding and fertilizing method and apparatus
ZA8308784B Trash clearing disc assembly for planters
US4483401A Trash clearing assembly for farm implements
US4446927A Ground penetrating tool for farm implement shanks
US4425973A Trash clearing disc assembly for planters
US4321972A Seed planter furrow opener and follower therefor
US4295532A Planter with cooperating trash clearing discs
US4269274A Streamlined wear-resistant deep tillage tool
US4033271A Apparatus for subsoil application
AU8396275A Method and apparatus for subsoil applications