Learn more

ALLEN SHERMAN HOFF CO

Overview
  • Total Patents
    110
About

ALLEN SHERMAN HOFF CO has a total of 110 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets environmental technology, packaging and shipping and engines, pumps and turbines are FRANK H DUNBAR, KOSMOS G M B H RUD PAWLIKOWSKI and ZHEJIANG TIANDI ENVIRONMENTAL PROT ENGINEERING CO LTD.

Patent filings in countries

World map showing ALLEN SHERMAN HOFF COs patent filings in countries
# Country Total Patents
#1 United States 85
#2 United Kingdom 7
#3 France 6
#4 Canada 5
#5 Germany 3
#6 Austria 1
#7 Belgium 1
#8 Spain 1
#9 Italy 1

Patent filings per year

Chart showing ALLEN SHERMAN HOFF COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Allen Frank B 49
#2 Mylting Lauritz E 11
#3 Emil Mylting Lauritz 10
#4 Dunbar Frank H 3
#5 Allardice Thomas B 3
#6 Mclennan James A 3
#7 Pursel Harold R 2
#8 Berry Bernard C 2
#9 Barber George R 1
#10 Sherman Max C 1

Latest patents

Publication Filing date Title
US3085831A Fine solids transferring device and method
US3038482A Dust handling apparatus
US3061994A Dust collector device
ES257789A1 Apparatus for the handling of ashes (Machine-translation by Google Translate, not legally binding)
GB902676A Combined fly ash and bottom ash handling system
FR1261384A Combined fly ash handling and ash deposit system
US2934379A Combined fly ash and bottom ash handling system
US2985420A Fluid control devices
GB797742A Improvements in hydraulic conveying means
US2821262A Vent bag filter
US2807202A Snubber vent for a storage silo
US2720177A Water seal for high pressure furnaces
US2776171A Automatic solids handling system
US2679374A Batch mixing method and apparatus
US2757987A Method and apparatus for transporting finely divided solids
US2594976A Seal for ash hoppers
US2725514A Electrical control apparatus for stopping electric motor
US2693775A Ash handling apparatus
US2693761A Axial adjustment for pump bearings
US2594975A Mixing apparatus