Learn more

SIETMANN VERNON H

Overview
  • Total Patents
    12
About

SIETMANN VERNON H has a total of 12 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States and Canada. Its main competitors in its focus markets chemical engineering, thermal processes and civil engineering are HUNAN NONGYOU SHENGTAI AGRICULTURAL TECH CO LTD, WESTELAKEN C and ANHUI GUWANG DRYING MACHINERY CO LTD.

Patent filings in countries

World map showing SIETMANN VERNON Hs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 2

Patent filings per year

Chart showing SIETMANN VERNON Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sietmann Vernon H 12
#2 Keese Larry S 3
#3 Smith Raymond L 3
#4 Stockdale Steven C 2
#5 Dendel Gerald F 2
#6 Stockdale Elmer G 2
#7 Lukehart Leonard J 1
#8 Locker Dale E 1
#9 Rohrs Kenneth V 1

Latest patents

Publication Filing date Title
US4426937A Heat exchanger furnace
US4424041A Trolling drive means for boats
US4319557A Heat exchanger furnace
US4118875A Method and means of drying particulate material
US4035928A Apparatus for drying grain
CA1017559A Apparatus for drying grain
US3943636A Apparatus for drying grain
US3686802A Auxiliary roof structure for grain drying bins
US3608558A Air manifold for a combine chaffer material leveler and aerator
US3497229A Particulate material leveling device
US3479748A Apparatus for and process of drying grain
CA913362A Apparatus for and process of drying grain