C04B 2235/5252
Having a specific pre-form
Official title: having a specific pre-form
C04B2235/5252 (Having a specific pre-form) appears on 616 US grants and 784 published applications in this corpus.
Search patents in C04B- Granted patents
- 616
- Published applications
- 784
- Assignees
- 291
- Inventors
- 1,461
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 10 | 0 |
| 1995 | 11 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 3 | 0 |
| 2001 | 11 | 3 |
| 2002 | 7 | 14 |
| 2003 | 6 | 9 |
| 2004 | 6 | 14 |
| 2005 | 9 | 16 |
| 2006 | 11 | 12 |
| 2007 | 5 | 13 |
| 2008 | 7 | 12 |
| 2009 | 5 | 18 |
| 2010 | 7 | 21 |
| 2011 | 9 | 32 |
| 2012 | 8 | 16 |
| 2013 | 16 | 22 |
| 2014 | 13 | 23 |
| 2015 | 17 | 26 |
| 2016 | 14 | 29 |
| 2017 | 22 | 30 |
| 2018 | 19 | 32 |
| 2019 | 29 | 54 |
| 2020 | 25 | 48 |
| 2021 | 41 | 54 |
| 2022 | 36 | 44 |
| 2023 | 49 | 62 |
| 2024 | 56 | 75 |
| 2025 | 51 | 65 |
| 2026 | 41 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Paste composition for additive manufacturing15 Sep 2026US 12,734,581 B2Vito NV
- Production of aerogel thermal insulation sheet by central injection approach15 Sep 2026US 12,735,364 B1Taiwan Aerogel Technology Material Co., Ltd.
- Polymer-derived ceramic reinforced with boron nitride1 Sep 2026US 12,723,006 B2North Carolina State University
- Exfoliated boron nitride for interface coating for ceramic matrix composites18 Aug 2026US 12,709,579 B2Rtx Corporation
- Fibrous preform of a friction part18 Aug 2026US 12,709,580 B2Safran Landing Systems
- Processes for the preparation of (3s,4r)-3-ethyl-4-(3h-imidazo[1,2-a]pyrrolo[2,3-e]-pyrazin-8-yl)-n-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide and solid state forms thereof8 Oct 2026US 2026/0308162 A1
- Fiber composite felt8 Oct 2026US 2026/0309422 A1Sgl Carbon SE
- Preform tapered hole press for improved cvi-cmc microstructure1 Oct 2026US 2026/0296980 A1Rtx Corporation
- Cmc component with cooling cavity24 Sep 2026US 2026/0286856 A1Rtx Corporation
- Particle enhancement of ceramic matrix composites, method of manufacture thereof and articles comprising the same10 Sep 2026US 2026/0265152 A1Rtx Corporation
Most cited
By later US patents
- Carbon/carbon composite fasteners126US 5,127,783 AThe B. F. Goodrich Company · 1992
- Fiber-containing composite89US 5,015,540 AGeneral Electric Company · 1991
- Transition metal oxide coated substrates89US 5,756,207 AEnsci, Inc. · 1998
- Intumescent sheet material with glass fibers74US 5,523,059 AMinnesota Mining and Manufacturing Company · 1996
- Process for producing fiber reinforced composite74US 5,876,659 AHitachi, Ltd. · 1999