TO

Torstein Obrestad

NA Norsk Hydro Asa: 6 patents #20 of 584Top 4%
YA Yara International Asa: 6 patents #8 of 134Top 6%
📍 Ulefoss, NO: #1 of 5 inventorsTop 20%
Overall (All Time): #339,955 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12103896 Calcium nitrate and potassium nitrate fertiliser particles Amund MYRSTAD, Petr Chladek 2024-10-01
11485689 Calcium nitrate and potassium nitrate fertiliser particles Amund MYRSTAD, Petr Chladek 2022-11-01
10294170 Conditioning agent for a particulate fertilizer for reducing hygroscopicity and dust formation Terje Tande 2019-05-21
10118867 Fertiliser coating containing micronutrients Stuart WARD, Victoria Anne Butler, Terje Tande 2018-11-06
9994492 Fertiliser coating containing micronutrients Stuart WARD, Victoria Anne Butler, Terje Tande 2018-06-12
9932509 Use of a calcium potassium nitrate salt for the manufacture of a heat transfer fluid Amund MYRSTAD, Tore FROGNER 2018-04-03
9908787 Method for producing anhydrous calcium nitrate powder 2018-03-06
7500995 Method for production of nitrate-containing products from undercooling melts Jan Birger Isaksen, Lars Moland 2009-03-10
6610267 Method for manufacturing a calcium nitrate melt and product thereof Lars Moland 2003-08-26
6176892 Method for making nitrogen-potassium fertilizer containing calcium nitrate and products thereof Jan Birger Isaksen, Lars Moland 2001-01-23
6171358 Calcium nitrate based fertilizer Johanne R.o slashed.dsvik, Torbj.o slashed.rn Legard 2001-01-09
5603745 Agricultural composition and conditioning agent for reducing hygroscopicity and dust formation of fertilizers Jarl M. Pettersen, Susanne G. Snartland 1997-02-18
5472530 Method of manufacturing free-flowing ammonium nitrate particles applying an anticaking agent Leif G. Helleb.0., Jan Birger Isaksen, Bj.0.rn Juliussen 1995-12-05
4713108 NPK complex fertilizer Olav Kjohl, Hans Groland 1987-12-15