G04B 39/008
Watch crystals: with means for magnified reading
Official title: {with means for magnified reading (combinations with a magnifying glass in general G04B47/00)}
G04B39/008 (Watch crystals: with means for magnified reading) appears on 16 US grants and 11 published applications in this corpus.
Search patents in G04B- Granted patents
- 16
- Published applications
- 11
- Assignees
- 12
- Inventors
- 32
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 3 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Reading device for an apparatus with glass or screen4 Mar 2025US 12,242,075 B2Fgp Capital SA
- Optical device for a timepiece20 Sep 2022US 11,449,011 B2Rolex SA
- Display system for a timepiece15 Feb 2022US 11,249,442 B2Complitime SA
- Watch equipped with a magnifier27 Dec 2016US 9,529,337 B2The Swatch Group Research and Development Ltd
- Magnification device for timepiece25 Sep 2007US 7,274,520 B2The Swatch Group Management Services AG
- Cover plate for display screen, method for preparing cover plate, and display device19 Oct 2023US 2023/0337385 A1Hefei Visionox Technology Co., Ltd.
- Ball dial8 Dec 2022US 2022/0390899 A1The Swatch Group Research and Development Ltd
- Reading device for an apparatus with glass or screen10 Dec 2020US 2020/0387001 A1Fgp Capital SA
- Optical device for a timepiece5 Dec 2019US 2019/0369564 A1Rolex SA
- Display system for a timepiece28 Mar 2019US 2019/0094812 A1Complitime SA
Most cited
By later US patents
- Digital watch magnifying element78US 4,451,117 A1984
- Watch crystal including a lens and manufacturing method for such a lens51US 6,406,769 B1Comadur SA · 2002
- Timepiece42US 6,275,450 B1Seiko Epson Corporation · 2001
- Mutual mounting of a crystal, a dial and a casing ring for a timepiece21US 6,456,569 B1ETA SA Fabriques d'Ebauches · 2002
- Timekeeping and magnifying device13US 5,883,860 A1999