G01C 19/30
Erection devices, i.e. devices for restoring rotor axis to a desired position
Official title: Erection devices, i.e. devices for restoring rotor axis to a desired position (for instrument indicating the vertical G01C19/46)
G01C19/30 (Erection devices, i.e. devices for restoring rotor axis to a desired position) appears on 77 US grants and 26 published applications in this corpus.
Search patents in G01C- Granted patents
- 77
- Published applications
- 26
- Assignees
- 44
- Inventors
- 121
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 1 |
| 2003 | 3 | 4 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 1 | 0 |
| 2021 | 2 | 2 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods, systems, apparatuses, and devices for providing a balance to objects7 Jul 2026US 12,673,001 B2
- Gyroscopically stabilised legged robot1 Apr 2025US 12,263,582 B2The University of Queensland
- Yaw damper for two-wheeled self-balancing vehicle18 Jun 2024US 12,012,156 B2Lit Motors Corporation
- Boat stabilization system7 May 2024US 11,975,806 B2Sleipner Motor AS
- System and method for position and speed feedback control9 Feb 2021US 10,913,550 B2The Boeing Company
- Methods, systems, apparatuses, and devices for providing a balance to objects2 May 2024US 2024/0142233 A1Cybernetic Sports
- Yaw damper for two-wheeled self-balancing vehicle3 Nov 2022US 2022/0348272 A1Lit Motors Corporation
- Gyroscope devices with control rotors and reaction wheels17 Feb 2022US 2022/0049957 A1Hewlett-Packard Development Company, L. P.
- Gyroscopically stabilised legged robot9 Dec 2021US 2021/0379774 A1The University of Queensland
- Boat stabilization system10 Jun 2021US 2021/0171165 A1Sleipner Motor AS
Most cited
By later US patents
- Analog torque rebalance loop for a tuned rotor gyroscope43US 5,138,883 AMinister of National Defence of Her Majesty's Canadian Government · 1992
- Appliance stabilized by a gyroscope, in particular a two-wheeled robot34US 6,527,071 B1Commissariat A L' Energie Atomique · 2003
- Direct torque control moment gyroscope28US 5,386,738 AHoneywell Inc. · 1995
- Gyroscope apparatus24US 4,633,722 A1987
- Method, apparatus and computer program product for estimating airplane attitude with reduced sensor set24US 6,473,676 B2Honeywell International Inc. · 2002