C04B 24/12
Nitrogen containing compounds organic derivatives of hydrazine
Official title: Nitrogen containing compounds {organic derivatives of hydrazine (hydrazine C04B22/00)}
C04B24/12 (Nitrogen containing compounds organic derivatives of hydrazine) appears on 410 US grants and 400 published applications in this corpus.
Search patents in C04B- Granted patents
- 410
- Published applications
- 400
- Assignees
- 247
- Inventors
- 1,098
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 10 | 0 |
| 1997 | 21 | 0 |
| 1998 | 16 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 0 |
| 2002 | 8 | 6 |
| 2003 | 4 | 6 |
| 2004 | 5 | 8 |
| 2005 | 4 | 3 |
| 2006 | 2 | 8 |
| 2007 | 3 | 5 |
| 2008 | 1 | 2 |
| 2009 | 2 | 7 |
| 2010 | 3 | 8 |
| 2011 | 6 | 10 |
| 2012 | 4 | 7 |
| 2013 | 9 | 21 |
| 2014 | 9 | 11 |
| 2015 | 18 | 14 |
| 2016 | 14 | 18 |
| 2017 | 15 | 20 |
| 2018 | 8 | 22 |
| 2019 | 16 | 35 |
| 2020 | 22 | 27 |
| 2021 | 25 | 23 |
| 2022 | 22 | 25 |
| 2023 | 20 | 33 |
| 2024 | 15 | 36 |
| 2025 | 18 | 19 |
| 2026 | 13 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flexible composite25 Aug 2026US 12,716,020 B2Concrete Canvas Technology Ltd.
- Pavement repair compositions, kits, and methods18 Aug 2026US 12,709,574 B2
- Methods and compositions for polymer concrete and polymer mortar28 Jul 2026US 12,692,193 B2Saudi Arabian Oil Company
- Dry grinding of steel making slag, ground steel making slag, and its use in construction materials30 Jun 2026US 12,668,543 B2Sika Technology AG
- Cover for asphalt including asphalt emulsion and method of paving asphalt using the same16 Jun 2026US 12,655,585 B2A-One Yoo Hwa
- Cementitous compositions for reducing efflorescence8 Oct 2026US 2026/0308051 A1Tremco Cpg Inc.
- Two-component mortar composition with temperature-responsive inhibitor17 Sep 2026US 2026/0274750 A1Hilti Aktiengesellschaft
- Biocementation mixture for dust control and related applications10 Sep 2026US 2026/0265130 A1Bind-X International GmbH
- High Compressive Strength Polymer Construction Shim10 Sep 2026US 2026/0265141 A1
- Accelerators for the reaction of high-silica aluminosilicates with water3 Sep 2026US 2026/0257969 A1Sika Technology AG
Most cited
By later US patents
- Foamed well cement slurries, additives and methods302US 6,063,738 AHalliburton Energy Services.Inc. · 2000
- Lightweight well cement compositions and methods181US 5,588,489 AHalliburton Company · 1996
- Foamed well cement slurries, additives and methods177US 6,547,871 B2Halliburton Energy Services.Inc. · 2003
- Foamed well cement slurries, additives and methods174US 6,367,550 B1Halliburton Energy Service, Inc. · 2002
- Sheets having a highly inorganically filled organic polymer matrix172US 5,508,072 AE. Khashoggi Industries · 1996