C04B 41/455
The coating or impregnating process including a chemical conversion or reaction
Official title: {the coating or impregnating process including a chemical conversion or reaction}
C04B41/455 (The coating or impregnating process including a chemical conversion or reaction) appears on 187 US grants and 127 published applications in this corpus.
Search patents in C04B- Granted patents
- 187
- Published applications
- 127
- Assignees
- 156
- Inventors
- 476
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 15 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 14 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 4 | 5 |
| 2018 | 2 | 4 |
| 2019 | 2 | 7 |
| 2020 | 4 | 15 |
| 2021 | 4 | 13 |
| 2022 | 5 | 10 |
| 2023 | 10 | 8 |
| 2024 | 9 | 21 |
| 2025 | 13 | 18 |
| 2026 | 11 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 41/4554The coating or impregnating material being an organic or organo-metallic precursor of88
- C04B 41/4556Coating or impregnating with a product reacting with the substrate37
- C04B 41/4558Coating or impregnating involving the chemical conversion of an already applied layer28
- C04B 41/4552The end product being obtained by a multistep reaction or conversion4
Recent patents
- Materials and processes for generating radioisotopes6 Oct 2026US 12,755,857 B2AdvanCell IPCo US No. 1 Pty Ltd
- Method of forming a barrier layer on a ceramic matrix composite2 Jun 2026US 12,643,828 B2Rolls-Royce High Temperature Composites Inc.
- Method for making a passivating coating based on one or more silicon compounds on a ceramic matrix composite reinforced with carbon fibres and ceramic matrix composite reinforced with carbon fibres with such coating21 Apr 2026US 12,606,499 B2C.I.R.A. (Centro Italiano Ricerche Aeropaziali) S.C.P.A.
- Environmental barrier coating and method of making the same14 Apr 2026US 12,600,685 B2Rtx Corporation
- Metal carbide infiltrated C/C composites7 Apr 2026US 12,595,216 B2Honeywell International Inc.
- 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
- Environmental barrier coatings and methods of formation17 Sep 2026US 2026/0274763 A1General Electric Company
- Ebc with improved tgo and silicon-based bondcoat3 Sep 2026US 2026/0257973 A1General Electric Company
- Ultrafast high temperature sintering (uhs) systems and methods for fabricating environmental-thermal barrier coatings3 Sep 2026US 2026/0258556 A1President and Fellows of Harvard College
- Fabrication of ceramic matrix composites13 Aug 2026US 2026/0234069 A1Rtx Corporation
Most cited
By later US patents
- Hydrogen silsesquioxane resin fractions and their use as coating materials95US 5,063,267 ADow Corning Corporation · 1991
- Rapid omnidirectional compaction process for producing metal nitride, carbide, or carbonitride coating on ceramic substrate90US 5,232,522 AThe Dow Chemical Company · 1993
- Hardened hydraulic cement, ceramic or coarse concrete aggregate treated with high pressure fluids78US 5,965,201 AMaterials Technology Corporation · 1999
- Hermetic protection for integrated circuits67US 5,481,135 ADow Corning Corporation · 1996
- Converting ceramic materials to electrical conductors and semiconductors64US 5,145,741 A1992