Learn more

DUC FRANCOIS

Overview
  • Total Patents
    18
About

DUC FRANCOIS has a total of 18 patent applications. Its first patent ever was published in 1969. It filed its patents most often in France, United States and Yugoslavia (Serbia and Montenegro). Its main competitors in its focus markets chemical engineering, agriculture and foods and drinks are WESTLAKE AGRICULTURAL ENG, PACHECO DA CUNHA OTALICIO and HEFEI SANWU MECH CO LTD.

Patent filings in countries

World map showing DUC FRANCOISs patent filings in countries

Patent filings per year

Chart showing DUC FRANCOISs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Duc Francois 4
#2 Francois Duc 1

Latest patents

Publication Filing date Title
FR2563328A1 Improved dual flow dehydration tunnel
FR2512184A1 Continuous dehydration process and device
FR2480922A1 Continuous flow fruit drying chamber - uses two section heating system with final condition controlled by operation of second section
FR2480921A1 Fruit drying chamber containing stationary carriages - uses reversible hot air circulating system including control of adjustable double air flaps
FR2364624A1 Hot air drier for fruits esp. plums - on trolleys which fit together to form drying tunnel
FR2351368A1 Hot air drying tunnel for fruit esp. prunes - with recuperative cooling tunnel discharging trucks through open exit
FR2269286A7 Hot air drying tunnel for fruit esp plums - employs counter current air flow pre-drying followed by co-current drying
FR2234847A1 Continuous operation fruit gathering machine - horiz. air jets dislodge fruit which falls from trees onto machine
US3618224A Process and apparatus for producing dried fruits
FR2088943A5 Fruit drying trays assembled in unitary structure with baffles
FR2081978A5 Fruit drying trays assembled in unitary structure with baffles