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HOFFMAN ROY D

Overview
  • Total Patents
    13
About

HOFFMAN ROY D has a total of 13 patent applications. Its first patent ever was published in 1954. It filed its patents most often in United States and Canada. Its main competitors in its focus markets medical technology, agriculture and machines are BIG DUTCHMAN PIG EQUIPMENT GMBH, SOMARK INNOVATIONS INC and MOOCALL LTD.

Patent filings in countries

World map showing HOFFMAN ROY Ds patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 4

Patent filings per year

Chart showing HOFFMAN ROY Ds patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hoffman Roy D 13
#2 Carlson Vance A 1

Latest patents

Publication Filing date Title
US3050060A Speculum liner and insemination rod combination
US2980058A Animal cot with electrically heated pad
US2900956A Cot for dog and animal cages
US2853075A Rumen trocar extricator
US2810955A Cartridge powered cow dehorner with pivoted cutter blade
US2766525A Cartridge-powered cow dehorner
US2816552A Teat bistoury with improved cutter blade adjusting means
US2764813A Cartridge-powered cow dehorner
US2730101A Teat bistoury with expansible cutter knives
CA542335A Cartridge powered cow dehorner
CA545886A Teat bistoury with expansible cutter knives
CA646541A Animal cot with electrically heated pad
CA542336A Cartridge-powered cow dehorner