C04B 2235/658
Atmosphere during thermal treatment
C04B2235/658 (Atmosphere during thermal treatment) appears on 2,529 US grants and 2,837 published applications in this corpus.
Search patents in C04B- Granted patents
- 2,529
- Published applications
- 2,837
- Assignees
- 991
- Inventors
- 5,693
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 9 | 0 |
| 1984 | 9 | 0 |
| 1985 | 7 | 0 |
| 1986 | 15 | 0 |
| 1987 | 12 | 0 |
| 1988 | 17 | 0 |
| 1989 | 24 | 0 |
| 1990 | 19 | 0 |
| 1991 | 32 | 0 |
| 1992 | 32 | 0 |
| 1993 | 19 | 0 |
| 1994 | 25 | 0 |
| 1995 | 27 | 0 |
| 1996 | 30 | 0 |
| 1997 | 20 | 0 |
| 1998 | 21 | 0 |
| 1999 | 30 | 0 |
| 2000 | 27 | 0 |
| 2001 | 19 | 14 |
| 2002 | 27 | 36 |
| 2003 | 46 | 86 |
| 2004 | 52 | 88 |
| 2005 | 53 | 86 |
| 2006 | 51 | 109 |
| 2007 | 63 | 126 |
| 2008 | 67 | 104 |
| 2009 | 77 | 128 |
| 2010 | 81 | 137 |
| 2011 | 73 | 139 |
| 2012 | 101 | 132 |
| 2013 | 92 | 127 |
| 2014 | 104 | 115 |
| 2015 | 108 | 111 |
| 2016 | 106 | 107 |
| 2017 | 108 | 130 |
| 2018 | 105 | 108 |
| 2019 | 95 | 120 |
| 2020 | 88 | 132 |
| 2021 | 106 | 131 |
| 2022 | 91 | 137 |
| 2023 | 112 | 172 |
| 2024 | 108 | 119 |
| 2025 | 108 | 93 |
| 2026 | 66 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 2235/6583Oxygen containing atmosphereIndexing code845
- C04B 2235/6581Total pressure below 1 atmosphereIndexing code743
- C04B 2235/6582Hydrogen containing atmosphereIndexing code670
- C04B 2235/6588Water vapor containing atmospheresIndexing code242
- C04B 2235/6586Processes characterised by the flow of gasIndexing code209
- C04B 2235/6587Influencing the atmosphere by vaporising a solid materialIndexing code181
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- Self-assembled soft magnetic ferrite nanocomposite materials and passive components and methods of making same1 Oct 2026US 2026/0296983 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Method of manufacturing ceramic matrix composites reinforced with metallic particles27 Aug 2026US 2026/0250202 A1Politechnika Warszawska
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Most cited
By later US patents
- Compact of boron-doped diamond and method for making same385US 4,268,276 AGeneral Electric Company · 1981
- Solid freeform fabrication methods283US 5,738,817 ARutgers, The State University · 1998
- Long persistent phosphors and persistent energy transfer technique225US 6,953,536 B2University of Georgia Research Foundation, Inc. · 2005
- Solid freeform fabrication methods223US 5,900,207 ARutgers, the State University Old Queens · 1999
- Method for fabricating artificial bone implant green parts218US 5,639,402 A1997