B23C 3/02
Milling surfaces of revolution
Official title: Milling surfaces of revolution (B23C3/06, B23C3/08 take precedence)
B23C3/02 (Milling surfaces of revolution) appears on 263 US grants and 206 published applications in this corpus.
Search patents in B23C- Granted patents
- 263
- Published applications
- 206
- Assignees
- 187
- Inventors
- 521
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 9 | 2 |
| 2003 | 7 | 13 |
| 2004 | 7 | 7 |
| 2005 | 3 | 4 |
| 2006 | 7 | 3 |
| 2007 | 3 | 7 |
| 2008 | 2 | 9 |
| 2009 | 5 | 6 |
| 2010 | 11 | 5 |
| 2011 | 1 | 0 |
| 2012 | 7 | 10 |
| 2013 | 4 | 8 |
| 2014 | 5 | 9 |
| 2015 | 9 | 8 |
| 2016 | 8 | 9 |
| 2017 | 5 | 17 |
| 2018 | 13 | 8 |
| 2019 | 14 | 18 |
| 2020 | 16 | 17 |
| 2021 | 5 | 12 |
| 2022 | 7 | 15 |
| 2023 | 9 | 4 |
| 2024 | 7 | 9 |
| 2025 | 4 | 4 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mobile device for machining a workpiece4 Aug 2026US 12,697,695 B2Dbm Mobile Feinstbearbeitung GmbH
- Attachment and method for machining globe valves16 Jun 2026US 12,654,229 B1Atlantic Hardchrome Limited
- System and method of re-profiling locomotive railcar wheels24 Mar 2026US 12,583,037 B2HJR Equipment Rental, Inc.
- Roll manufacturing method, roll manufacturing apparatus, roll, and transfer object24 Mar 2026US 12,583,039 B2Dexerials Corporation
- Rail milling vehicle30 Sep 2025US 12,427,579 B2Harsco Technologies LLC
- Machining device and method for repairing an annular workpiece20 Nov 2025US 2025/0353122 A1Safran Nacelles
- Machining method, machine tool, cutting tool, and cutting insert2 Oct 2025US 2025/0303473 A1Makino Milling Machine Co., Ltd.
- Apparatus for centering a pilot tool within a valve guide during valve seat cutting2 Oct 2025US 2025/0303482 A1Van Norman Machine India PVT LTD
- Vessel welding, repair, and reconditioning method and system15 May 2025US 2025/0153284 A1
- Wheel machining device14 Nov 2024US 2024/0375194 A1Top-One Machinery Co., Ltd.
Most cited
By later US patents
- Tool for the metal cutting machining of valve seats43US 7,530,769 B2Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG · 2009
- Portable field machine for cutting, grinding and lapping valve seats28US 4,050,836 ARockwell International Corporation · 1977
- Method and machine for machining the surface of a valve seat24US 4,545,706 AHonda Giken Kogyo Kabushiki Kaisha · 1985
- Apparatus and method for machining valve seats in an engine cylinder head24US 5,829,928 AHarmand Family Limited Partnership · 1998
- Apparatus and process for refurbishing valves23US 4,593,445 AWestinghouse Electric Corp. · 1986