G01B 3/26
Plug gauges
G01B3/26 (Plug gauges) appears on 43 US grants and 33 published applications in this corpus.
Search patents in G01B- Granted patents
- 43
- Published applications
- 33
- Assignees
- 32
- Inventors
- 94
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 3 |
| 2010 | 2 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 4 |
| 2014 | 1 | 3 |
| 2015 | 3 | 3 |
| 2016 | 3 | 3 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 3 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control method of an automatic inside-diameter measuring apparatus and an automatic measuring apparatus31 Mar 2026US 12,590,794 B2Mitutoyo Corporation
- Gap measuring device3 Feb 2026US 12,540,809 B2China Three Gorges Corporation
- Inside-diameter measuring unit, floating joint mechanism unit, and measuring unit19 Aug 2025US 12,392,595 B2Mitutoyo Corporation
- Chamfer gage with interchangeable anvils27 May 2025US 12,313,401 B2Alpha Q, Inc.
- Gauge apparatus, system and method14 May 2024US 11,982,177 B2Expro North Sea Limited
- Gap measuring device29 Feb 2024US 2024/0068794 A1China Three Gorges Corporation
- Inside-diameter measuring unit, floating joint mechanism unit, and measuring unit28 Sep 2023US 2023/0304784 A1Mitutoyo Corporation
- Control method of an automatic inside-diameter measuring apparatus and an automatic measuring apparatus28 Sep 2023US 2023/0304785 A1Mitutoyo Corporation
- Gauge apparatus, system and method19 May 2022US 2022/0155048 A1Expro North Sea Limited
- Spacer tool26 Aug 2021US 2021/0261209 A1Caterpillar Inc.
Most cited
By later US patents
- Internal measuring device29US 4,265,026 A1981
- Inside dimension measuring gauge12US 4,288,924 AKabushiki Kaisha Mitutoyo Seisakusho · 1981
- Cylinder gauge12US 4,476,634 AMitutoyo Mfg. Co., Ltd. · 1984
- Variable amplification expanding plug gage10US 4,067,114 A1978
- Bore gage10US 4,170,831 AFederal Products Corporation · 1979