C23C 22/83
Chemical after-treatment
C23C22/83 (Chemical after-treatment) appears on 572 US grants and 527 published applications in this corpus.
Search patents in C23C- Granted patents
- 572
- Published applications
- 527
- Assignees
- 329
- Inventors
- 1,537
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 15 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 12 | 0 |
| 1994 | 17 | 0 |
| 1995 | 25 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 3 |
| 2002 | 18 | 10 |
| 2003 | 18 | 15 |
| 2004 | 14 | 14 |
| 2005 | 4 | 20 |
| 2006 | 9 | 21 |
| 2007 | 5 | 15 |
| 2008 | 6 | 20 |
| 2009 | 8 | 25 |
| 2010 | 8 | 22 |
| 2011 | 6 | 27 |
| 2012 | 14 | 21 |
| 2013 | 12 | 25 |
| 2014 | 22 | 37 |
| 2015 | 15 | 27 |
| 2016 | 25 | 44 |
| 2017 | 25 | 24 |
| 2018 | 21 | 27 |
| 2019 | 21 | 24 |
| 2020 | 20 | 23 |
| 2021 | 11 | 25 |
| 2022 | 18 | 15 |
| 2023 | 7 | 16 |
| 2024 | 16 | 8 |
| 2025 | 14 | 8 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Abrasion-resistant coatings for thermal interfaces21 Jul 2026US 12,690,170 B2Henkel AG & Co. KGaA
- Systems for treating a metal substrate12 May 2026US 12,624,224 B2PPG Industries Ohio, Inc.
- Method for applying a conversion coating with an aquous pickling composition comprising an aminophosphonic acid and a polymer24 Mar 2026US 12,584,229 B2Chemetall GmbH
- Aluminum alloy articles exhibiting improved bond durability and methods of making the same17 Mar 2026US 12,577,679 B2Novelis Inc.
- Surface modification of a zinc-based metal coating in a hot-dip coating process10 Feb 2026US 12,545,984 B2ThyssenKrupp Steel Europe AG
- Phosphonate-free, aqueous pickling compositions and their use27 Aug 2026US 2026/0250850 A1Chemetall GmbH
- Systems for treating a metal substrate20 Aug 2026US 2026/0242617 A1PPG Industries Ohio, Inc.
- Chemical conversion coating solution, method for coloring metal element, metal element, and slide fastener23 Jul 2026US 2026/0209947 A1YKK Corporation
- Unique colored resistant to corrosion metal23 Jul 2026US 2026/0209952 A1Novet Group Ltd
- Multistage process for coating components having steel surfaces with corrosion protection2 Jul 2026US 2026/0185241 A1Henkel AG & Co. KGaA
Most cited
By later US patents
- Method of bonding copper and resin81US 4,642,161 AHitachi, Ltd. · 1987
- Steel sheet with enhanced corrosion resistance having a silane treated silicate coating80US 5,108,793 AArmco Steel Corporation · 1992
- Process for treating copper surface74US 4,902,551 AHitachi Chemical Company, Ltd. · 1990
- Process for producing copper clad laminate72US 5,382,333 AMitsubishi Gas Chemical Company, Inc. · 1995
- Method for making multi-layer circuit boards69US 5,861,076 APark Electrochemical Corporation · 1999