Patents
Patents for A01D 44 - Harvesting of underwater plants, e.g. harvesting of seaweed (500)
04/1996
04/28/1996CA2134515A1 Euphausiid harvesting and processing method and apparatus
02/1996
02/27/1996US5493850 Lake bottom plant and debris gathering apparatus with improved actuation and cleaning of raking mechanism
01/1996
01/30/1996US5487258 Water hyacinth removal apparatus and method
01/09/1996US5481856 Method and apparatus for cutting aquatic vegetation
01/06/1996CA2127395A1 Aquatic weed harvester
12/1995
12/19/1995US5475970 Aquatic vegetation separator
12/05/1995US5472569 Paper comprising cellulose fiber and seaweed particles in integral form
11/1995
11/09/1995WO1995022893A3 Euphausiid harvesting and processing method and apparatus
09/1995
09/19/1995US5450713 Aquatic weed trap
09/05/1995US5447018 Aquatic plant de-rooting apparatus
08/1995
08/31/1995WO1995022893A2 Euphausiid harvesting and processing method and apparatus
07/1995
07/25/1995US5435083 Aquatic weed eradicator
07/11/1995US5430998 Underwater weed cutting machine
06/1995
06/20/1995US5425222 Underwater weed cutting apparatus
04/1995
04/11/1995US5404696 Harvesting machine
12/1994
12/13/1994US5372001 Aquatic vegetation mowing apparatus
12/04/1994CA2097673A1 Aquatic plant de-rooting apparatus
11/1994
11/01/1994US5359835 For inhibiting growth of plant life in water
09/1994
09/20/1994US5347798 Harvesting apparatus
04/1994
04/26/1994US5305585 System for uprooting aquatic plants
10/1993
10/20/1993EP0565920A1 Procedure for manufacturing paper from seaweed and paper thus obtained
09/1993
09/29/1993EP0562072A1 Aquatic plant harvesting system
08/1993
08/17/1993US5235797 Method of harvesting aquatic plants
04/1993
04/13/1993US5201168 Underwater weed cutting apparatus
04/01/1993WO1993005638A1 Aquatic plant harvesting system
03/1993
03/30/1993US5197263 Method and apparatus for harvesting aquatic plants
03/02/1993US5189867 Aquatic vegetation cutter
01/1993
01/21/1993WO1992021227A3 Apparatus for mechanically removing water plants, in particular water hyacinths, from waters
12/1992
12/10/1992WO1992021227A2 Apparatus for mechanically removing water plants, in particular water hyacinths, from waters
11/1992
11/10/1992US5161354 Aquatic plant harvester
10/1992
10/23/1992CA2040923A1 Underwater weed dredger
10/06/1992US5152126 System for uprooting aquatic plants
09/1992
09/15/1992US5146997 Lake weed removing apparatus
09/15/1992US5146734 Underwater vegetation cutter
09/02/1992CN1018071B Ecological chlorella harvesting method
09/01/1992US5142849 Aquatic plant cutting apparatus and aquatic plant recovery boat equipped with the apparatus
07/1992
07/15/1992CN1062634A Skirt belt cutting method
06/1992
06/16/1992CA1303363C Weeder for inland waterways
04/1992
04/29/1992CN2102612U Combined harvester for underwater plants
04/26/1992CA2028580A1 Device for the removal of aquatic vegetation
03/1992
03/29/1992CA2043630A1 Aquatic plant cutting apparatus and aquatic plant recovery boat equipped with the apparatus
02/1992
02/20/1992WO1992002691A1 Harvesting apparatus
01/1992
01/28/1992US5083417 Apparatus for harvesting vegetable matter
01/14/1992US5079905 Floating weed rake
12/1991
12/24/1991US5074105 Lake rake and methods
12/17/1991CA1293128C Weed harvester
12/03/1991US5069023 Aquatic vegetation harvester
09/1991
09/10/1991CA1288600C Aquatic vegetation cutter
07/1991
07/16/1991US5031390 Aquatic harvesting equipment
06/1991
06/04/1991US5020307 Method and apparatus for water harvesting
03/1991
03/19/1991US4999982 Weeder for inland waterways
03/06/1991EP0414719A1 Aquatic vegetation cutter
10/1990
10/03/1990CN2062938U Algae harvester
07/1990
07/24/1990US4942722 Plant harvester
06/1990
06/05/1990CA1269845A1 Suction harvester for aquatic plants and animals
04/1990
04/11/1990CN1041083A Ecological chlorella harvesting method
12/1989
12/12/1989US4885902 Aquatic vegetation harvester
11/1989
11/16/1989WO1989009538A3 Aquatic vegetation cutter
10/1989
10/19/1989WO1989009538A2 Aquatic vegetation cutter
08/1989
08/01/1989US4852337 Method and apparatus for removing aquatic plants
03/1989
03/28/1989US4815260 Plant harvester
10/1988
10/25/1988US4779404 Suction harvester for aquatic plants and animals
09/1988
09/06/1988US4768331 Lake rake
06/1988
06/08/1988EP0270373A2 A water craft, a paddle wheel for propelling a craft upon water, a floating harvester and a harvester of the type including a cable means which is rotated about its longitudinal axis for winding plant growth thereon
12/1987
12/22/1987US4713929 Harvesting of aquatic vegetation by helicopters
10/1987
10/08/1987WO1987005878A1 Inshore submersible amphibious machines
09/1987
09/29/1987US4696149 Aquatic weed control method and apparatus
06/1987
06/30/1987US4676052 Self-propelled dredge
03/1987
03/25/1987EP0215012A1 Suction harvester for aquatic plants and animals
01/1987
01/27/1987US4638621 Method and system for processing aquatic plants
08/1986
08/14/1986WO1986004482A1 Suction harvester for aquatic plants and animals
04/1986
04/22/1986US4583353 Underwater weed cutter
10/1985
10/16/1985EP0157784A1 Device for cutting grass on uneven grounds and particularly in ditches
08/1985
08/28/1985EP0153217A1 Method and apparatus for the intensive cultivation of aquatic plants
06/1985
06/04/1985US4520616 Method and system for conditioning and removing aquatic plants
04/1985
04/02/1985US4507909 Compactor and paddle wheel for aquatic harvester
03/1985
03/14/1985WO1985000952A1 Device for cutting grass on uneven grounds and particularly in ditches
11/1983
11/22/1983US4416106 Method and apparatus for removal of aquatic plant growth
05/1983
05/31/1983CA1147149A1 Vessel for gathering marine seaweed
03/1983
03/01/1983US4375299 Aquatic weeder
10/1982
10/05/1982CA1132804A1 Floating apparatus for weeding waterways
05/1982
05/11/1982US4328658 Weed harvester
08/1981
08/04/1981CA1106190A1 Weed harvester
07/1981
07/01/1981EP0031224A2 Water weed cutting and/or clearing vessel
06/1981
06/30/1981US4275545 Kelp blade harvester
04/1981
04/14/1981US4261160 Weed removal apparatus
04/07/1981US4259828 Irish moss harvester
03/1981
03/31/1981US4258534 Aquatic harvesting apparatus
03/24/1981CA1097929A1 Kelp blade harvester
02/1981
02/03/1981US4248033 Thru-flow aquatic harvester
12/1980
12/23/1980US4240243 Intake balancing and satellite collector system
11/1980
11/18/1980CA1089655A1 Irish moss harvester
09/1980
09/16/1980US4222217 Aquatic weed harvesting apparatus
06/1980
06/03/1980US4205507 Aquatic weed cutting apparatus
05/1980
05/13/1980US4202155 Aquatic weed cutter, de-rooter and harvester
04/1980
04/29/1980CA1076369A1 Aquatic weed control machine
04/08/1980US4196566 Aquatic weed cutter
12/1979
12/11/1979US4177624 Aquatic plant sampler
02/1979
02/06/1979US4137693 Rake device for removing weeds from lakes
01/1978
01/31/1978US4070978 Floating apparatus for weeding and dredging waterways
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