C21C 1/105
Nodularising additive agents
Official title: {Nodularising additive agents}
C21C1/105 (Nodularising additive agents) appears on 84 US grants and 66 published applications in this corpus.
Search patents in C21C- Granted patents
- 84
- Published applications
- 66
- Assignees
- 77
- Inventors
- 216
- Latest grant
- 20 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 4 |
| 2013 | 1 | 4 |
| 2014 | 2 | 5 |
| 2015 | 1 | 4 |
| 2016 | 2 | 5 |
| 2017 | 5 | 4 |
| 2018 | 1 | 3 |
| 2019 | 2 | 3 |
| 2020 | 3 | 7 |
| 2021 | 1 | 0 |
| 2022 | 3 | 5 |
| 2023 | 3 | 0 |
| 2024 | 4 | 3 |
| 2025 | 0 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing an improved ductile iron alloy with pearlitic matrix20 Aug 2024US 12,065,723 B2Verdeloong Enterprises Pty. Ltd.
- Method for controlling amount of silicon added to ductile cast iron, method for casting ductile cast iron, and cast product2 Apr 2024US 11,946,120 B2Shandong University of Technology
- Cast iron inoculant and method for production of cast iron inoculant19 Mar 2024US 11,932,913 B2Elkem ASA
- Spherical graphite cast iron semi-solid casting method and semi-solid cast product5 Mar 2024US 11,920,205 B2
- Method for producing die-cast product of spherical graphitic cast iron including ultrafine spherical graphite, and spheroidizing treatment agent19 Dec 2023US 11,845,999 B2
- Cast iron comprising niobium particles and method for producing cast iron30 Apr 2026US 2026/0117348 A1Instituto HercíLio Randon
- High mechanical strength and high thermal conductivity vermicular cast iron alloy, high mechanical strength and high thermal conductivity vermicular cast iron alloy manufacturing process, and internal combustion engine part15 Jan 2026US 2026/0015698 A1Tupy S. A.
- Grade of ductile iron with reinforced ferritic matrix17 Apr 2025US 2025/0122600 A1Sediver
- Composite additive for forming inclusions with core-shell structure, preparation method and smelting method6 Feb 2025US 2025/0043371 A1Sino-Energy Huayuan Floating Wind Institute
- Process for treating molten iron15 Feb 2024US 2024/0052443 A1
Most cited
By later US patents
- Additive for use in refining iron23US 4,137,072 AToyo Soda Manufacturing Co., Ltd. · 1979
- Addition of magnesium to molten metal21US 4,040,818 AMagnesium Elektron Limited · 1977
- Injectable reagents for molten metals15US 4,708,737 AThe Dow Chemical Company · 1987
- Cast iron14US 4,086,086 ABritish Cast Iron Research Association · 1978
- Desulphuration of metals14US 4,209,325 AFoseco International Limited · 1980