B23B 2222/21
Copper
B23B2222/21 (Copper) appears on 17 US grants and 19 published applications in this corpus.
Search patents in B23B- Granted patents
- 17
- Published applications
- 19
- Assignees
- 22
- Inventors
- 54
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Attachment and method for machining globe valves16 Jun 2026US 12,654,229 B1Atlantic Hardchrome Limited
- Insert and cutting tool1 Oct 2024US 12,103,090 B2KYOCERA Corporation
- Prep bit6 Sep 2022US 11,433,463 B2Mueller Industries, Inc.
- Apparatus for blocking fluid flow through pipes30 Mar 2021US 10,962,163 B2NLB Engineering Limited
- Method for controlling flow localization in machining processes24 Nov 2020US 10,843,274 B2Purdue Research Foundation
- Cutting tool assembly with adjustable dampers28 Sep 2023US 2023/0302545 A1Kennametal India Limited
- Insert and cutting tool28 Apr 2022US 2022/0126375 A1KYOCERA Corporation
- Prep Bit11 Nov 2021US 2021/0346965 A1Mueller Industries, Inc.
- Apparatus for repairing and upgrading pipes31 Oct 2019US 2019/0331281 A1NLB Engineering Limited
- Core drill bit and methods of forming3 May 2018US 2018/0117793 A1Saint-Gobain Abrasifs
Most cited
By later US patents
- Metal-working tool using electrical heating46US 4,535,216 ARockwell International Corporation · 1985
- Throw away cutting tool32US 4,909,677 ASumitomo Electric Industries, Ltd. · 1990
- Core drill bit10US 10,723,041 B2Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs · 2020
- Throw away cutting tool10US 5,054,967 ASumitomo Electric Industries, Ltd. · 1991
- Two-flute twist drill5US 7,516,686 B2TG Tools United Company · 2009