G01C 5/04
Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
G01C5/04 (Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points) appears on 82 US grants and 27 published applications in this corpus.
Search patents in G01C- Granted patents
- 82
- Published applications
- 27
- Assignees
- 36
- Inventors
- 109
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 3 |
| 2016 | 5 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 4 | 2 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Settlement monitoring system and method24 Feb 2026US 12,560,428 B2Osprey Measurement Systems LTD
- Orientation determination device30 Dec 2025US 12,510,355 B1
- Method and device for improving the stability of height difference measurement based on corrugated tube13 May 2025US 12,298,124 B2
- System and method for pre-emptive property shifting detection and remediation20 Aug 2024US 12,065,798 B1United Services Automobile Association (USAA)
- Pressire sensor including height determination with improved flexibility and reliability18 Jul 2023US 11,703,410 B2Hexagon Technology Center GmbH
- Systems and methods for excavation7 May 2026US 2026/0125879 A1AzerGrade Innovations Inc
- Method and device for improving the stability of height difference measurement based on corrugated tube3 Apr 2025US 2025/0109937 A1Guangdong Runyu Sensor Co., Ltd
- Device for measuring relative heights and inclination sensor24 Nov 2022US 2022/0373419 A1Hexagon Technology Center GmbH
- A settlement monitoring system and method6 Oct 2022US 2022/0316873 A1Osprey Measurement Systems LTD
- Ziplot-Instant Graphical Elevation Measurement Documentation5 Aug 2021US 2021/0239466 A1
Most cited
By later US patents
- Tube profile gage16US 4,003,263 A1977
- Vertical displacement measuring apparatus16US 4,026,156 AThe Charles Stark Draper Laboratory, Inc. · 1977
- Apparatus for ascertaining the pressure in a plenum chamber14US 4,729,378 AInterzeag AG · 1988
- Structure leveling system13US 4,686,773 A1987
- Level indicating and elevation indicating device12US 4,231,163 A1980