B23B 5/40
For turning spherical surfaces inside or outside
Official title: for turning spherical surfaces inside or outside
B23B5/40 (For turning spherical surfaces inside or outside) appears on 36 US grants and 22 published applications in this corpus.
Search patents in B23B- Granted patents
- 36
- Published applications
- 22
- Assignees
- 28
- Inventors
- 74
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 2 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Precision freeform structuring for the fabrication of coded lenses5 May 2026US 12,617,020 B2Northwestern University
- Router sled7 Apr 2026US 12,594,635 B2
- Machining apparatus for differential case19 Sep 2023US 11,759,900 B2Haru Technique Laboratory Inc.
- Cutting tool for machining differential case, machining apparatus for differential case and machining method for differential case22 Mar 2022US 11,278,966 B2Haru Technique Laboratory Inc.
- Device for forming expanded hole section26 Dec 2017US 9,849,606 B2Mokukouzou System Co., Ltd.
- Router sled2 Mar 2023US 2023/0064921 A1
- Precision Freeform Structuring for the Fabrication of Coded Lenses10 Nov 2022US 2022/0355387 A1Northwestern University
- Cutting tool for machining differential case, machining apparatus for differential case and machining method for differential case8 Apr 2021US 2021/0101212 A1Haru Technique Laboratory Inc.
- Machining apparatus for differential case11 Feb 2021US 2021/0039209 A1Haru Technique Laboratory Inc.
- Cutting Method for Inner Circumferential Face or Outer Circumferential Face of Work11 May 2017US 2017/0129017 A1Matsuura Machinery Corporation
Most cited
By later US patents
- Method of manufacturing disk for variator27US 6,637,107 B2Koyo Seiko Co., Ltd. · 2003
- Facing and journal turning machine17US 4,186,630 ABoise Cascade Corporation · 1980
- Reamer for hollow shafts14US 4,357,846 AAnsaldo Societa per Azioni · 1982
- Machine for manufacturing universal joints14US 4,593,444 A1986
- Position drive, in particular for use in machine tools, and tool head having such a position drive13US 5,967,007 AKomet Praezisionswerkzeuge Robert Breuning GmbH · 1999