US 12,006,273 B2
Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
Ravi Hegde, Bangalore (IN); Rajamalleswaramma Koripelly, Bangalore (IN); Chandra Mohana, Bangalore (IN); Radha Achanath, Bangalore (IN); Samik Gupta, Bangalore (IN); and Sabeshan Kanagalingam, Bangalore (IN)
Assigned to SABIC AGRI-NUTRIENTS COMPANY, Jubail (SA)
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
Filed on Apr. 7, 2022, as Appl. No. 17/715,466.
Application 17/715,466 is a continuation of application No. 16/605,610, granted, now 11,358,908, previously published as PCT/IB2018/052630, filed on Apr. 16, 2018.
Claims priority of provisional application 62/487,260, filed on Apr. 19, 2017.
Prior Publication US 2022/0251002 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C05G 3/90 (2020.01); C05C 9/00 (2006.01); C05C 11/00 (2006.01); C05G 5/30 (2020.01); C05G 5/35 (2020.01); C05G 5/40 (2020.01)
CPC C05G 3/90 (2020.02) [C05C 9/00 (2013.01); C05C 9/005 (2013.01); C05C 11/00 (2013.01); C05G 5/30 (2020.02); C05G 5/35 (2020.02); C05G 5/40 (2020.02)] 20 Claims
OG exemplary drawing
 
1. A particulate fertilizer composition comprising:
(a) a first particle comprising a urease inhibitor and is substantially free of any nitrification inhibitor; and
(b) a second particle comprising a nitrification inhibitor and is substantially free of any urease inhibitor,
wherein the first particle and the second particle are separate from each other.