C21D 2211/00
Microstructure comprising significant phases
C21D2211/00 (Microstructure comprising significant phases) appears on 3,808 US grants and 5,704 published applications in this corpus.
Search patents in C21D- Granted patents
- 3,808
- Published applications
- 5,704
- Assignees
- 1,007
- Inventors
- 7,825
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 13 | 0 |
| 1995 | 22 | 0 |
| 1996 | 26 | 0 |
| 1997 | 32 | 0 |
| 1998 | 38 | 0 |
| 1999 | 23 | 0 |
| 2000 | 28 | 0 |
| 2001 | 50 | 9 |
| 2002 | 38 | 32 |
| 2003 | 50 | 76 |
| 2004 | 44 | 88 |
| 2005 | 33 | 46 |
| 2006 | 22 | 56 |
| 2007 | 20 | 52 |
| 2008 | 25 | 77 |
| 2009 | 38 | 109 |
| 2010 | 48 | 140 |
| 2011 | 59 | 157 |
| 2012 | 76 | 161 |
| 2013 | 75 | 195 |
| 2014 | 104 | 258 |
| 2015 | 126 | 302 |
| 2016 | 135 | 289 |
| 2017 | 191 | 343 |
| 2018 | 209 | 357 |
| 2019 | 279 | 410 |
| 2020 | 255 | 379 |
| 2021 | 268 | 361 |
| 2022 | 337 | 392 |
| 2023 | 238 | 402 |
| 2024 | 238 | 388 |
| 2025 | 336 | 309 |
| 2026 | 247 | 316 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C21D 2211/008MartensiteIndexing code2,084
- C21D 2211/005FerriteIndexing code1,860
- C21D 2211/001AusteniteIndexing code1,441
- C21D 2211/002BainiteIndexing code1,257
- C21D 2211/004DispersionsIndexing code676
- C21D 2211/009PearliteIndexing code520
- C21D 2211/003CementiteIndexing code232
- C21D 2211/006GraphiteIndexing code20
All 9 subgroupsShow fewer
Recent patents
- High strength steel sheet and method of producing same6 Oct 2026US 12,753,454 B2Jfe Steel Corporation
- Ultra-high strength cold rolled steel sheet having excellent bendability, and method of manufacturing same6 Oct 2026US 12,753,455 B2Posco
- Steel sheet with excellent phosphatability and manufacturing method therefor6 Oct 2026US 12,753,458 B2Posco
- Steel sheet6 Oct 2026US 12,753,460 B2Nippon Steel Corporation
- Hot rolled high strength steel strip having high hole expansion ratio6 Oct 2026US 12,753,461 B2Tata Steel Ijmuiden B.V.
- A cold rolled martensitic steel and a method of martensitic steel thereof8 Oct 2026US 2026/0308706 A1
- Steel plate and method for manufacturing same8 Oct 2026US 2026/0308708 A1Posco
- Martensitic stainless steel strip8 Oct 2026US 2026/0308709 A1Proterial, Ltd.
- Temperature-control device1 Oct 2026US 2026/0297702 A1EBNER Industrieofenbau GmbH
- Coated steel sheet, member, and methods for producing the same1 Oct 2026US 2026/0297713 A1Jfe Steel Corporation
Most cited
By later US patents
- Time sequenced heating of multiple layers in a hydrocarbon containing formation225US 7,635,023 B2Shell Oil Company · 2009
- Temperature limited heaters using phase transformation of ferromagnetic material186US 7,597,147 B2Shell Oil Company · 2009
- Wellhead with non-ferromagnetic materials184US 7,533,719 B2Shell Oil Company · 2009
- Compositions produced using an in situ heat treatment process172US 7,604,052 B2Shell Oil Company · 2009
- Sour gas injection for use with in situ heat treatment163US 7,610,962 B2Shell Oil Company · 2009