G01D 5/34746
Linear encoders
Official title: {Linear encoders}
G01D5/34746 (Linear encoders) appears on 415 US grants and 390 published applications in this corpus.
Search patents in G01D- Granted patents
- 415
- Published applications
- 390
- Assignees
- 171
- Inventors
- 661
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 6 |
| 2003 | 5 | 4 |
| 2004 | 10 | 9 |
| 2005 | 4 | 10 |
| 2006 | 4 | 10 |
| 2007 | 14 | 18 |
| 2008 | 12 | 16 |
| 2009 | 12 | 23 |
| 2010 | 13 | 14 |
| 2011 | 8 | 14 |
| 2012 | 13 | 15 |
| 2013 | 12 | 19 |
| 2014 | 11 | 17 |
| 2015 | 20 | 22 |
| 2016 | 23 | 16 |
| 2017 | 17 | 23 |
| 2018 | 21 | 32 |
| 2019 | 28 | 27 |
| 2020 | 32 | 28 |
| 2021 | 27 | 20 |
| 2022 | 17 | 12 |
| 2023 | 11 | 8 |
| 2024 | 8 | 9 |
| 2025 | 4 | 11 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reflection-type optical encoder scale including an inorganic layer stack pattern with specific reflectance6 Oct 2026US 12,754,044 B2Dai Nippon Printing Co.Ltd.
- Optical sensing assembly and encoder utilizing vernier effect and multi-stage position synthesis30 Jun 2026US 12,669,351 B2Delta Electronics, Inc.
- Optical sensing assembly and encoder23 Jun 2026US 12,663,297 B2Delta Electronics, Inc.
- Absolute position detection device and absolute position detection method2 Jun 2026US 12,644,730 B2Mitsubishi Electric Corporation
- Position identification method and system5 May 2026US 12,619,837 B2Hema (China) Co., Ltd.
- Absolute encoder10 Sep 2026US 2026/0266630 A1
- Linear encoder, guide mechanism, and method for attaching linear encoder16 Jul 2026US 2026/0202224 A1Thk Co., Ltd.
- Recording apparatus9 Jul 2026US 2026/0192583 A1Seiko Epson Corporation
- Measurement device, lithography system and exposure apparatus, and control method, overlay measurement method and device manufacturing method25 Jun 2026US 2026/0177938 A1Nikon Corporation
- Optical encoders and detector systems for detecting wavelength and/or position of a moveable light source, and related methods18 Jun 2026US 2026/0168824 A1GPD Optoelectronics Corp.
Most cited
By later US patents
- Optical displacement sensor for infusion devices123US 7,498,563 B2DEKA Products Limited Partnership · 2009
- Angular and axial position sensor arrangement91US 9,244,438 B2The Swatch Group Research and Development Ltd · 2016
- Digital linear measuring device60US 5,027,526 A1991
- Optical displacement sensor for infusion devices59US 8,552,361 B2DEKA Products Limited Partnership · 2013
- Displacement detection apparatus48US 7,238,931 B2Sony Corporation · 2007