C23C 2/34
Hot-dipping or immersion processes for applying the coating material in the molten
Official title: characterised by the shape of the material to be treated (C23C2/14 takes precedence)
C23C2/34 (Hot-dipping or immersion processes for applying the coating material in the molten) appears on 1,297 US grants and 1,772 published applications in this corpus.
Search patents in C23C- Granted patents
- 1,297
- Published applications
- 1,772
- Assignees
- 269
- Inventors
- 2,225
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 6 | 6 |
| 2003 | 8 | 17 |
| 2004 | 12 | 12 |
| 2005 | 4 | 3 |
| 2006 | 1 | 6 |
| 2007 | 4 | 9 |
| 2008 | 2 | 12 |
| 2009 | 2 | 15 |
| 2010 | 4 | 18 |
| 2011 | 6 | 10 |
| 2012 | 10 | 22 |
| 2013 | 11 | 24 |
| 2014 | 15 | 55 |
| 2015 | 20 | 73 |
| 2016 | 35 | 94 |
| 2017 | 54 | 96 |
| 2018 | 60 | 115 |
| 2019 | 82 | 160 |
| 2020 | 95 | 163 |
| 2021 | 126 | 114 |
| 2022 | 135 | 146 |
| 2023 | 116 | 157 |
| 2024 | 119 | 186 |
| 2025 | 151 | 135 |
| 2026 | 104 | 122 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Slurry-blasted hot-roll-based hot dip aluminized steel strip6 Oct 2026US 12,753,476 B2Cleveland-Cliffs Steel Properties Inc.
- High-strength alloyed hot-dip galvanized steel sheet and manufacturing method therefor6 Oct 2026US 12,753,477 B2Kobe Steel, Ltd.
- Aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and method for manufacturing same6 Oct 2026US 12,753,479 B2Posco
- Steel sheet for hot press formed member22 Sep 2026US 12,741,447 B2Posco
- Method for manufacturing hot-dip galvanized steel sheet, and steel sheet and vehicle component22 Sep 2026US 12,742,222 B2Baoshan Iron & Steel Co., Ltd.
- Hydrogen induced cracking-resistant cold-rolled hot-dip galvanized ultra-high-strength dual-phase steel and manufacturing method therefor8 Oct 2026US 2026/0308732 A1Baoshan Iron & Steel Co., Ltd.
- Coated steel sheet, member, and methods for producing the same1 Oct 2026US 2026/0297713 A1Jfe Steel Corporation
- Steel sheet and plated steel sheet1 Oct 2026US 2026/0297714 A1Nippon Steel Corporation
- Hot dipping and high-temperature austenitizing technologies-based zinc-aluminum-magnesium coated steel sheet to be stamped, preparation method therefor and use thereof1 Oct 2026US 2026/0297720 A1Bengang Steel Plates Co., Ltd.
- High-strength cold-rolled steel sheet, hot-dipped galvanized steel sheet, alloyed hot-dipped galvanized steel sheet, and methods for producing of these24 Sep 2026US 2026/0286456 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Most cited
By later US patents
- Rotary board treating apparatus90US 4,531,474 ADainippon Screen Manufacturing Co., Ltd. · 1985
- Process for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc89US 6,364,930 B1Andritz Patentverwaltungsgellschaft mbH · 2002
- Process and device for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc86US 6,656,415 B2Andritz Patentverwaltungsgesellschaft M.B.H. · 2003
- Installation for the flame metalization of small pieces of steel or cast iron53US 5,152,953 A1992
- Process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated50US 6,564,604 B2Unisor · 2003