C04B 2235/614
Gas infiltration of green bodies or pre-forms
C04B2235/614 (Gas infiltration of green bodies or pre-forms) appears on 542 US grants and 684 published applications in this corpus.
Search patents in C04B- Granted patents
- 542
- Published applications
- 684
- Assignees
- 182
- Inventors
- 1,015
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 12 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 2 |
| 2002 | 5 | 5 |
| 2003 | 2 | 3 |
| 2004 | 5 | 12 |
| 2005 | 3 | 15 |
| 2006 | 6 | 14 |
| 2007 | 7 | 9 |
| 2008 | 7 | 7 |
| 2009 | 2 | 13 |
| 2010 | 7 | 17 |
| 2011 | 7 | 23 |
| 2012 | 12 | 13 |
| 2013 | 10 | 25 |
| 2014 | 9 | 24 |
| 2015 | 17 | 19 |
| 2016 | 17 | 40 |
| 2017 | 29 | 43 |
| 2018 | 29 | 29 |
| 2019 | 35 | 36 |
| 2020 | 33 | 46 |
| 2021 | 25 | 39 |
| 2022 | 32 | 39 |
| 2023 | 39 | 55 |
| 2024 | 44 | 68 |
| 2025 | 42 | 55 |
| 2026 | 39 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fabrication of fibrous preforms in CMC manufacture22 Sep 2026US 12,741,913 B2Rtx Corporation
- Ceramic matrix composites and their preforms11 Aug 2026US 12,703,169 B2Rtx Corporation
- Minimization of chemical vapor infiltration tooling hole length through counterbores11 Aug 2026US 12,703,915 B2Rtx Corporation
- Tooling for producing z-channels in ceramic fiber preforms14 Jul 2026US 12,678,990 B2Rtx Corporation
- Controlled gradient of porosity in CMC16 Jun 2026US 12,655,069 B2Rtx Corporation
- Manufacturing of silicon-carbon composites materials1 Oct 2026US 2026/0296899 A1Group14 Technologies, Inc.
- Preform tapered hole press for improved cvi-cmc microstructure1 Oct 2026US 2026/0296980 A1Rtx Corporation
- Particle enhancement of ceramic matrix composites, method of manufacture thereof and articles comprising the same10 Sep 2026US 2026/0265152 A1Rtx Corporation
- Composite panel core structure27 Aug 2026US 2026/0250208 A1General Electric Company
- Silicon-carbon particle, negative electrode plate, and battery20 Aug 2026US 2026/0242294 A1Zhuhai Cosmx Battery Co., Ltd.
Most cited
By later US patents
- Carbon/carbon composite fasteners126US 5,127,783 AThe B. F. Goodrich Company · 1992
- Fiber reinforced composite product97US 3,991,248 ADucommun Incorporated · 1976
- Process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition66US 4,580,524 AThe United States of America as represented by the United States Department of Energy · 1986
- Process for the manufacture of a composite material with refractory fibrous reinforcement and ceramic matrix60US 4,752,503 ASociete Europeenne de Propulsion · 1988
- Composite material protected against oxidation by a self-healing matrix, and a method of manufacturing it60US 5,965,266 ASociete Nationale d'Etude et de Construction de Moteurs d'Aviation · 1999