G01C 15/12
Instruments for setting out fixed angles
Official title: Instruments for setting out fixed angles, e.g. right angles
G01C15/12 (Instruments for setting out fixed angles) appears on 39 US grants and 38 published applications in this corpus.
Search patents in G01C- Granted patents
- 39
- Published applications
- 38
- Assignees
- 25
- Inventors
- 89
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 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 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 3 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 3 | 1 |
| 2016 | 0 | 1 |
| 2017 | 3 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 7 |
| 2021 | 4 | 2 |
| 2022 | 3 | 4 |
| 2023 | 2 | 1 |
| 2024 | 4 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for comparing a received beam incident on a laser receiver with a rotating laser beam9 Dec 2025US 12,492,895 B2Hilti Aktiengesellschaft
- Laser level12 Nov 2024US 12,140,429 B2Milwaukee Electric Tool Corporation
- Large-dip-angle self-leveling device5 Nov 2024US 12,135,110 B2Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences
- Level instrument and method for surveying mining subsidence zone in coal mining area23 Jul 2024US 12,044,531 B1Ping An Coal Mining Engineering Tec
- Surveying device, surveying method, and surveying program2 Jan 2024US 11,859,977 B2Topcon Corporation
- Antenna alignment system including earth browser obtained actual position data and related methods7 May 2026US 2026/0126288 A1Sunsight Holdings, LLC
- Level holding device6 Feb 2025US 2025/0044087 A1
- Laser Level30 Jan 2025US 2025/0035442 A1Milwaukee Electric Tool Corporation
- Surveying device, surveying method, and surveying program21 Sep 2023US 2023/0296378 A1Topcon Corporation
- Large-dip-angle self-leveling device10 Nov 2022US 2022/0356984 A1Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences
Most cited
By later US patents
- Laser-based tool for indicating level, plumb and square44US 6,763,595 B1PLS-Pacific Laser Systems, LLC · 2004
- Apparatus for producing a visible line of light on a surface, particularly a wall28US 7,287,336 B1Trimble Navigation Limited · 2007
- Universal angle means14US 6,739,062 B2Quarton, Inc. · 2004
- Right angle measuring device14US 6,978,553 B22005
- Laser line projected on an edge of a surface11US 7,487,596 B2Irwin Industrial Tool Company · 2009