G01C 17/14
By reference marks
Official title: by reference marks, e.g. for ships' compasses
G01C17/14 (By reference marks) appears on 9 US grants and 5 published applications in this corpus.
Search patents in G01C- Granted patents
- 9
- Published applications
- 5
- Assignees
- 6
- Inventors
- 10
- Latest grant
- 22 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Compass device22 Jun 2021US 11,041,721 B2Chuan Ching Mechanical Industrial Co., Ltd.
- Electronic timepiece6 Apr 2021US 10,969,225 B2Seiko Epson Corporation
- Electronic timepiece29 Jan 2019US 10,190,880 B2Seiko Epson Corporation
- Magnetic compass14 Jul 2015US 9,080,869 B2
- Emergency responder's orientation method and device11 Nov 2008US 7,448,140 B2
- Compass device25 Feb 2021US 2021/0055106 A1Chuan Ching Mechanical Industrial Co., Ltd.
- Electronic timepiece25 Apr 2019US 2019/0120626 A1Seiko Epson Corporation
- Electronic timepiece7 Sep 2017US 2017/0254647 A1Seiko Epson Corporation
- Magnetic compass3 Jul 2014US 2014/0182149 A1
- Emergency responder's orientation method and device22 Nov 2007US 2007/0266575 A1
Most cited
By later US patents
- Magnetic compass8US 4,930,224 ARule Industries, Inc. · 1990
- Course indicator4US 4,089,118 A1978
- Device for preventing error in a compass4US 4,571,843 AInstrumentverken Aktiebolag · 1986
- Tactical dinghy compass3US 4,616,423 AJ. & K. Shephard Design Pty Limited · 1986
- Emergency responder's orientation method and device3US 7,448,140 B22008