Y10S 71/902
Nitrification inhibition
Y10S71/902 (Nitrification inhibition) appears on 71 US grants and 6 published applications in this corpus.
Search patents in Y10S- Granted patents
- 71
- Published applications
- 6
- Assignees
- 26
- Inventors
- 115
- Latest grant
- 24 Apr 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 21 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors24 Apr 2012US 8,163,058 B2Whitehurst Associates, Inc.
- Buffered amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors13 Mar 2012US 8,133,294 B2Whitehurst Associates, Inc.
- Preparations with improved urease-inhibiting effect and urea-containing fertilizers containing the latter13 Dec 2011US 8,075,659 B2BASF SE
- Buffered amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors1 Nov 2011US 8,048,189 B2Whitehurst Associates, Inc.
- Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers12 Oct 2004US 6,802,882 B2BASF SE
- Buffered amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors29 Dec 2011US 2011/0314883 A1Whitehurst Associates, Inc.
- Amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors27 Oct 2011US 2011/0259068 A1Whitehurst Associates, Inc.
- Preparations with improved urease-inhibiting effect and urea-containing fertilizers containing the latter2 Sep 2010US 2010/0218575 A1BASF SE
- Buffered amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors19 Aug 2010US 2010/0206030 A1Whitehurst Associates, Inc.
- Amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors19 Aug 2010US 2010/0206031 A1Whitehurst Associates, Inc.
Most cited
By later US patents
- Granular urea-based fertilizer90US 5,352,265 AFreeport-McMoRan Resource Partners, Limited Partnership · 1994
- N-aliphatic and N,N-aliphatic phosphoric triamide urease inhibitors and urease inhibited urea based fertilizer compositions88US 4,530,714 AAllied Corporation · 1985
- Controlled release vegetation enhancement agents coated with sulfonated polymers, method of production and prcesses of use87US 5,435,821 AExxon Research & Engineering Co. · 1995
- Formulation for fertilizer additive concentrate70US 5,698,003 AIMC-Agrico Company · 1997
- Fluid urea-containing fertilizer51US 5,364,438 AFreeport-McMoRan Resource Partners, Limited Partnership · 1994