G01C 3/26
Measuring distances in line of sight: using a parallactic triangle with fixed
Official title: using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object
G01C3/26 (Measuring distances in line of sight: using a parallactic triangle with fixed) appears on 9 US grants and 7 published applications in this corpus.
Search patents in G01C- Granted patents
- 9
- Published applications
- 7
- Assignees
- 7
- Inventors
- 16
- Latest grant
- 28 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
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| 1985 | 0 | 0 |
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| 1990 | 0 | 0 |
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| 1992 | 0 | 0 |
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| 1996 | 1 | 0 |
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| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
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| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System and method of tilt sensor tide and inland water level gauge28 Jun 2022US 11,371,841 B2
- Distance determination system for a vehicle using holographic techniques2 Aug 2016US 9,404,742 B2GM Global Technology Operations LLC
- Self-locating devices via highly directional RFID tags in controlled location13 Nov 2007US 7,295,132 B2International Business Machines Corporation
- Laser assisted telescopic target sighting system and method13 Feb 1996US 5,491,546 A
- Surveying instrument31 Aug 1982US 4,346,989 AHewlett-Packard Company
- Survey mark17 Jul 2025US 2025/0231027 A1
- System and method of tilt sensor tide and inland water level gauge7 Oct 2021US 2021/0310806 A1
- Distance measurements including supplemental accuracy data22 Jul 2021US 2021/0223038 A1Magik Eye Inc.
- Three-dimensional measurement apparatus, non-transitory computer readable medium, and three-dimensional measurement system27 Sep 2018US 2018/0274918 A1Fuji Xerox Co., Ltd.
- Altimeter using imaging capability29 Sep 2016US 2016/0286141 A1Rosemount Aerospace Inc.
Most cited
By later US patents
- Laser assisted telescopic target sighting system and method213US 5,491,546 A1996
- Surveying instrument and method89US 4,113,381 AHewlett-Packard Company · 1978
- Self-locating devices via highly directional RFID tags in controlled location82US 7,295,132 B2International Business Machines Corporation · 2007
- Surveying instrument33US 4,346,989 AHewlett-Packard Company · 1982
- Reflecting lens system18US 4,108,539 AHewlett-Packard Company · 1978