G01N 2021/4778
Correcting variations in front distance
Official title: {Correcting variations in front distance}
G01N2021/4778 (Correcting variations in front distance) appears on 11 US grants and 12 published applications in this corpus.
Search patents in G01N- Granted patents
- 11
- Published applications
- 12
- Assignees
- 9
- Inventors
- 31
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 2 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reference switch architectures for noncontact sensing of substances18 Aug 2026US 12,710,358 B2Apple Inc.
- Reference switch architectures for noncontact sensing of substances10 Sep 2024US 12,085,500 B2Apple Inc.
- Reference switch architectures for noncontact sensing of substances21 Feb 2023US 11,585,749 B2Apple Inc.
- Reference switch architectures for noncontact sensing of substances13 Oct 2020US 10,801,950 B2Apple Inc.
- Focus control arrangement and method4 Feb 2020US 10,551,308 B2ASML Netherlands B. V.
- Reference switch architectures for noncontact sensing of substances12 Dec 2024US 2024/0410822 A1Apple Inc.
- Reference Switch Architectures for Noncontact Sensing of Substances29 Jun 2023US 2023/0204497 A1Apple Inc.
- Reference Switch Architectures for Noncontact Sensing of Substances21 Jan 2021US 2021/0018432 A1Apple Inc.
- Diffusing wave spectroscopy apparatus and control method therefor6 Sep 2018US 2018/0249911 A1Canon U.S.A., Inc.
- Reference switch architectures for noncontact sensing of substances23 Aug 2018US 2018/0238794 A1Apple Inc.
Most cited
By later US patents
- Apparatus and method for measuring optical characteristics of an object75US 5,926,262 ALJ Laboratories, L.L.C. · 1999
- Inspection device and system for inspecting foreign matters in a liquid filled transparent container19US 6,937,339 B2Hitachi Engineering Co., Ltd. · 2005
- Reference switch architectures for noncontact sensing of substances12US 10,801,950 B2Apple Inc. · 2020
- Light-based shielding detection12US 9,851,298 B1Apple Inc. · 2017
- Reference switch architectures for noncontact sensing of substances5US 11,585,749 B2Apple Inc. · 2023