G01C 21/20
Instruments for performing navigational calculations
Official title: Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence)
G01C21/20 (Instruments for performing navigational calculations) appears on 7,431 US grants and 9,317 published applications in this corpus.
Search patents in G01C- Granted patents
- 7,431
- Published applications
- 9,317
- Assignees
- 2,553
- Inventors
- 16,433
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 4 | 0 |
| 1978 | 10 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 16 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 22 | 0 |
| 1999 | 17 | 0 |
| 2000 | 22 | 0 |
| 2001 | 40 | 12 |
| 2002 | 46 | 59 |
| 2003 | 46 | 84 |
| 2004 | 58 | 84 |
| 2005 | 66 | 97 |
| 2006 | 67 | 118 |
| 2007 | 56 | 127 |
| 2008 | 59 | 148 |
| 2009 | 71 | 167 |
| 2010 | 104 | 220 |
| 2011 | 105 | 208 |
| 2012 | 144 | 238 |
| 2013 | 224 | 376 |
| 2014 | 317 | 436 |
| 2015 | 367 | 484 |
| 2016 | 413 | 557 |
| 2017 | 507 | 596 |
| 2018 | 485 | 664 |
| 2019 | 599 | 693 |
| 2020 | 589 | 800 |
| 2021 | 587 | 718 |
| 2022 | 545 | 621 |
| 2023 | 522 | 473 |
| 2024 | 487 | 507 |
| 2025 | 417 | 459 |
| 2026 | 273 | 371 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cleaning robot escape method and device, medium, and electronic apparatus6 Oct 2026US 12,751,594 B2Beijing Roborock Innovation Technology Co., Ltd.
- Information processing device, control method, program and storage medium6 Oct 2026US 12,754,021 B2Pioneer Corporation
- Systems and methods for dynamically generating optimal routes for management of multiple vehicles6 Oct 2026US 12,754,030 B2State Farm Mutual Automobile Insurance Company
- Systems and methods for dynamically generating optimal routes for vehicle delivery management6 Oct 2026US 12,754,031 B2State Farm Mutual Automobile Insurance Company
- Systems and methods for automatically annotating multimodal data6 Oct 2026US 12,755,569 B2Noblis, Inc.
- Intelligent assistive blind guidance system and method based on audio-visual fusion and haptic feedback8 Oct 2026US 2026/0309497 A1Shandong University
- Cross-modality sensor fusion and error correction8 Oct 2026US 2026/0309499 A1Lockheed Martin Corporation
- Information processing method, information processing device, and computer program8 Oct 2026US 2026/0309500 A1Sony Group Corporation
- Method and system for computing a flight path vector8 Oct 2026US 2026/0309501 A1
- Method for determining optimized basis functions for describing trajectories8 Oct 2026US 2026/0309502 A1Robert Bosch GmbH
Most cited
By later US patents
- Computer aided map location system1,031US 5,848,373 ADeLorme Publishing Co. · 1998
- Digital maps displaying search-resulting points-of-interest in user delimited regions1,019US 8,510,045 B22013
- Location of a mobile station using a plurality of commercial wireless infrastructures1,007US 6,236,365 B1TracBeam LLC · 2001
- Computer aided routing system681US 5,559,707 ADeLorme Publishing Co. · 1996
- Internet based geographic location referencing system and method660US 6,202,023 B1Go2 Systems, Inc. · 2001