G01C 9/18
Measuring inclination: by using liquids
Official title: by using liquids
G01C9/18 (Measuring inclination: by using liquids) appears on 1,168 US grants and 768 published applications in this corpus.
Search patents in G01C- Granted patents
- 1,168
- Published applications
- 768
- Assignees
- 360
- Inventors
- 1,612
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 10 | 0 |
| 1978 | 25 | 0 |
| 1979 | 17 | 0 |
| 1980 | 11 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 9 | 0 |
| 1984 | 11 | 0 |
| 1985 | 16 | 0 |
| 1986 | 13 | 0 |
| 1987 | 13 | 0 |
| 1988 | 14 | 0 |
| 1989 | 14 | 0 |
| 1990 | 19 | 0 |
| 1991 | 21 | 0 |
| 1992 | 32 | 0 |
| 1993 | 27 | 0 |
| 1994 | 12 | 0 |
| 1995 | 31 | 0 |
| 1996 | 21 | 0 |
| 1997 | 20 | 0 |
| 1998 | 30 | 0 |
| 1999 | 23 | 0 |
| 2000 | 31 | 0 |
| 2001 | 26 | 9 |
| 2002 | 30 | 27 |
| 2003 | 34 | 26 |
| 2004 | 27 | 27 |
| 2005 | 23 | 36 |
| 2006 | 30 | 38 |
| 2007 | 21 | 29 |
| 2008 | 21 | 34 |
| 2009 | 35 | 36 |
| 2010 | 29 | 23 |
| 2011 | 26 | 28 |
| 2012 | 20 | 22 |
| 2013 | 19 | 26 |
| 2014 | 19 | 21 |
| 2015 | 22 | 31 |
| 2016 | 27 | 38 |
| 2017 | 28 | 44 |
| 2018 | 38 | 34 |
| 2019 | 32 | 33 |
| 2020 | 34 | 37 |
| 2021 | 41 | 36 |
| 2022 | 39 | 38 |
| 2023 | 36 | 30 |
| 2024 | 28 | 23 |
| 2025 | 19 | 24 |
| 2026 | 15 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Leveling device with hook and loop straps22 Sep 2026US 12,742,641 B1
- Leveling method and leveling system21 Jul 2026US 12,687,393 B2Fulian Precision Electronics (Tianjin) Co., LTD.
- Measuring device14 Jul 2026US 12,681,176 B2
- Construction surface flatness detector30 Jun 2026US 12,669,328 B2Changzhou Huada Kejie Opto-Electro Instrument Co., Ltd.
- Tri Outward Swivel Vial Level8 Oct 2026US 2026/0309492 A1
- Improved Illuminated Level1 Oct 2026US 2026/0298629 A1
- Rotating Laser having at Least One Inclination Sensor24 Sep 2026US 2026/0287353 A1Robert Bosch GmbH
- Support for a tripod3 Sep 2026US 2026/0259482 A1Really Right Stuff, LLC
- Devices for leveling scope reticles of crossbows20 Aug 2026US 2026/0243537 A1
Most cited
By later US patents
- Multipurpose gripping tool886US 7,162,758 B22007
- Locator device for continuously locating a dipole magnetic field transmitter and its method of operation244US 5,337,002 A1994
- Sourceless orientation sensor176US 5,526,022 AVirtual I/O, Inc. · 1996
- Implantable multi-axis position and activity sensor167US 5,233,984 AMedtronic, Inc. · 1993
- Hand held electronic remote control device166US 5,459,489 ATV Interactive Data Corporation · 1995