G01D 5/345
Polarising encoders
Official title: {Polarising encoders}
G01D5/345 (Polarising encoders) appears on 78 US grants and 59 published applications in this corpus.
Search patents in G01D- Granted patents
- 78
- Published applications
- 59
- Assignees
- 44
- Inventors
- 143
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 4 |
| 2006 | 3 | 2 |
| 2007 | 2 | 3 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 4 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 3 | 6 |
| 2014 | 4 | 6 |
| 2015 | 3 | 5 |
| 2016 | 7 | 4 |
| 2017 | 4 | 3 |
| 2018 | 4 | 4 |
| 2019 | 5 | 3 |
| 2020 | 4 | 1 |
| 2021 | 2 | 4 |
| 2022 | 2 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fiber optic sensor and measurement method, apparatus and storage medium23 Jun 2026US 12,663,298 B2Zhejiang Lab
- Rotary position encoder based on polarization19 Nov 2024US 12,146,771 B2Novanta Corporation
- Linear photonic processors and related methods26 Sep 2023US 11,768,662 B1Lightmatter, Inc.
- Linear photonic processors and related methods21 Mar 2023US 11,609,742 B2Lightmatter, Inc.
- Method and system for contactless detection of rotational movement21 Jun 2022US 11,365,989 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Encoder apparatus23 Jul 2026US 2026/0210738 A1Renishaw PLC
- Encoder apparatus23 Jul 2026US 2026/0210739 A1Renishaw PLC
- Encoder apparatus23 Jul 2026US 2026/0210740 A1Renishaw PLC
- Fiber optic sensor and measurement method, apparatus and storage medium4 Jun 2026US 2026/0153366 A1Zhejiang Lab
- Linear photonic processors and related methods14 Sep 2023US 2023/0289142 A1Lightmatter, Inc.
Most cited
By later US patents
- Optical position sensor using Faraday effect element and magnetic scale79US 4,931,635 ATeijin Seiki Co., Ltd. · 1990
- Optical angle sensor using polarization techniques32US 5,424,535 AThe Boeing Company · 1995
- Multi-axis wheel transducer with angular position detector30US 5,540,108 AAdvanced Mechanical Technology, Inc. · 1996
- Pulsed polarization device for measuring angle of rotation27US 3,932,039 AWestinghouse Electric Corp. · 1976
- Position sensor19US 5,668,331 AU. S. Philips Corporation · 1997