B23G 1/52
For operating on pipes or tubes
Official title: for operating on pipes or tubes
B23G1/52 (For operating on pipes or tubes) appears on 25 US grants and 26 published applications in this corpus.
Search patents in B23G- Granted patents
- 25
- Published applications
- 26
- Assignees
- 12
- Inventors
- 49
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 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 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 4 |
| 2023 | 1 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bench pipe threading machine and threading method12 May 2026US 12,623,296 B2Hangzhou Hongli Pipe Machinery Co., Ltd
- Pipe threading mechanisms and systems31 Mar 2026US 12,589,460 B2Ridge Tool Company
- Handheld lithium battery threading machine and threading method25 Nov 2025US 12,479,038 B2Hangzhou Hongli Pipe Machinery Co., Ltd
- Lubrication system for portable pipe threader19 Aug 2025US 12,390,870 B2Milwaukee Electric Tool Corporation
- Portable pipe threader12 Nov 2024US 12,138,702 B2Milwaukee Electric Tool Corporation
- Lubrication system for portable pipe threader20 Nov 2025US 2025/0353090 A1Milwaukee Electric Tool Corporation
- Portable pipe threader9 Jan 2025US 2025/0010389 A1Milwaukee Electric Tool Corporation
- Portable pipe threader8 Feb 2024US 2024/0042538 A1Milwaukee Electric Tool Corporation
- Pipe threading mechanisms and systems7 Sep 2023US 2023/0278122 A1Ridge Tool Company
- Handheld lithium battery threading machine and threading method30 Mar 2023US 2023/0097943 A1Hangzhou Hongli Pipe Machinery Co., Ltd
Most cited
By later US patents
- Threading machine chuck13US 4,819,527 AEmerson Electric Co. · 1989
- Method of supporting pipe during machining12US 4,417,363 A1983
- Threading die couple11US 4,349,931 A1982
- Cover and seal for power driven threading machine oil reservoir10US 4,787,531 AEmerson Electric Co. · 1988
- Threading machine chuck9US 5,074,176 AEmerson Electric Co. · 1991