H03M 1/308
With additional pattern means for determining the absolute position
Official title: {with additional pattern means for determining the absolute position, e.g. reference marks}
H03M1/308 (With additional pattern means for determining the absolute position) appears on 92 US grants and 18 published applications in this corpus.
Search patents in H03M- Granted patents
- 92
- Published applications
- 18
- Assignees
- 62
- Inventors
- 150
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 5 |
| 2006 | 3 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical position-measuring device28 Nov 2023US 11,828,630 B2Dr. Johannes Heidenhain GmbH
- Magnetic encoder for producing an index signal19 Apr 2016US 9,316,508 B2The Timken Company
- Flexible crank angle position sensing29 Mar 2016US 9,297,321 B2Woodward, Inc.
- Optical encoding system and optical encoder having an array of incremental photodiodes and an index photodiode for use in an optical encoding system3 Sep 2013US 8,525,102 B2Avago Technologies General IP (Singapore) Pte. Ltd.
- Optical encoder having reference position detection11 Nov 2008US 7,449,678 B2Olympus Corporation
- Optical position-measuring device14 Jan 2021US 2021/0010807 A1Dr. Johannes Heidenhain GmbH
- Magnetic encoder for producing an index signal2 Apr 2015US 2015/0091554 A1The Timken Company
- Flexible crank angle position sensing13 Jun 2013US 2013/0151194 A1Woodward, Inc.
- Three-channel encoder using a single optical track16 Aug 2012US 2012/0205528 A1Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- Method for an enhanced incremental-absolute position sensor system23 Feb 2012US 2012/0044101 A1
Most cited
By later US patents
- Encoder for measuring the absolute position of moving elements209US 4,901,073 AThe Regent of the University of California · 1990
- Virtual absolute position encoder88US 5,852,413 AKensington Laboratories, Inc. · 1998
- Absolute rotational position detection device87US 4,764,767 AKabushiki Kaisha SG · 1988
- Encoder for measuring both incremental and absolute positions of moving elements64US 4,914,437 AThe Regents of the University of California · 1990
- Absolute position detection encoder62US 5,068,529 ANikon Corporation · 1991