C04B 41/45
Coating or impregnating
Official title: Coating or impregnating (paints C09D), {e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements (ion-implantation C04B41/0027)}
C04B41/45 (Coating or impregnating) appears on 6,504 US grants and 4,937 published applications in this corpus.
Search patents in C04B- Granted patents
- 6,504
- Published applications
- 4,937
- Assignees
- 2,663
- Inventors
- 13,582
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 53 | 0 |
| 1977 | 51 | 0 |
| 1978 | 55 | 0 |
| 1979 | 37 | 0 |
| 1980 | 64 | 0 |
| 1981 | 58 | 0 |
| 1982 | 62 | 0 |
| 1983 | 73 | 0 |
| 1984 | 85 | 0 |
| 1985 | 85 | 0 |
| 1986 | 100 | 0 |
| 1987 | 95 | 0 |
| 1988 | 109 | 0 |
| 1989 | 160 | 0 |
| 1990 | 136 | 0 |
| 1991 | 208 | 0 |
| 1992 | 185 | 0 |
| 1993 | 203 | 0 |
| 1994 | 179 | 0 |
| 1995 | 151 | 0 |
| 1996 | 172 | 0 |
| 1997 | 186 | 0 |
| 1998 | 225 | 0 |
| 1999 | 177 | 0 |
| 2000 | 148 | 0 |
| 2001 | 189 | 49 |
| 2002 | 158 | 160 |
| 2003 | 153 | 206 |
| 2004 | 151 | 185 |
| 2005 | 103 | 152 |
| 2006 | 82 | 175 |
| 2007 | 78 | 167 |
| 2008 | 75 | 168 |
| 2009 | 88 | 204 |
| 2010 | 102 | 205 |
| 2011 | 107 | 178 |
| 2012 | 106 | 158 |
| 2013 | 111 | 154 |
| 2014 | 110 | 156 |
| 2015 | 119 | 163 |
| 2016 | 125 | 198 |
| 2017 | 125 | 186 |
| 2018 | 117 | 194 |
| 2019 | 150 | 246 |
| 2020 | 180 | 224 |
| 2021 | 140 | 261 |
| 2022 | 148 | 219 |
| 2023 | 186 | 227 |
| 2024 | 185 | 286 |
| 2025 | 215 | 249 |
| 2026 | 144 | 167 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 41/50With inorganic materials3,549
- C04B 41/52Multiple coating or impregnating multiple coating or impregnating with the same composition1,906
- C04B 41/46With organic materials1,211
- C04B 41/4505Characterised by the method of application888
- C04B 41/4584Coating or impregnating of particulate or fibrous ceramic material341
- C04B 41/4578Coating or impregnating of green ceramics or unset concrete87
- C04B 41/4582Porous coatings86
- C04B 41/4572Partial coating or impregnation of the surface of the substrate66
All 14 subgroupsShow fewer
- C04B 41/457Non-superficial impregnation or infiltration of the substrate43
- C04B 41/459Temporary coatings or impregnations37
- C04B 41/4501With preformed sheet-like elements36
- C04B 41/4596With fibrous materials or whiskers29
- C04B 41/4586Non-chemical aspects relating to the substrate being coated or impregnated7
- C04B 41/4598With waste materials5
Recent patents
- Method to control dissolution of silicon carbide during fabrication of a ceramic matrix composite6 Oct 2026US 12,753,127 B1Rolls-Royce High Temperature Composites Inc.
- Wear resistant coating produced from at least two different AlCr-based targets6 Oct 2026US 12,753,484 B2Oerlikon Surface Solutions AG, PfäFfikon
- Materials and processes for generating radioisotopes6 Oct 2026US 12,755,857 B2AdvanCell IPCo US No. 1 Pty Ltd
- Composite ceramic substrate having multi-layer configuration29 Sep 2026US 12,747,191 B2Tong Hsing Electronic Industries, Ltd.
- Environmental barrier coating29 Sep 2026US 12,747,192 B2Rtx Corporation
- Method of Forming a Binder Composition and Products Formed Therefrom8 Oct 2026US 2026/0308062 A1A.M.N (Natanya) Engineering and Consulting, LTD
- Bonded reinforced plastic concrete vapor barrier8 Oct 2026US 2026/0308074 A1Helix Steel, LLC
- Environmental barrier coating8 Oct 2026US 2026/0308075 A1Rtx Corporation
- Method of Forming a Stucco Composition and Products Formed Therefrom1 Oct 2026US 2026/0296964 A1A.M.N (Natanya) Engineering and Consulting, LTD
- 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
Most cited
By later US patents
- Fast-setting latex coatings and formulations1,019US 6,251,485 B1The Dow Chemical Company · 2001
- Process for converting a metal carbide to carbon by etching in halogens566US 6,579,833 B1The Board of Trustees of the University of Illinois · 2003
- Method for thermally spraying crack-free mullite coatings on ceramic-based substrates541US 6,296,909 B1General Electric Company · 2001
- Halogen gas plasma-resistive members and method for producing the same, laminates, and corrosion-resistant members455US 6,783,875 B2NGK Insulators, Ltd. · 2004
- Si/SiC composite material and method for making Si/SiC composite material388US 5,494,439 AIntel Corporation · 1996