G04B 39/00
Watch crystals
Official title: Watch crystals; Fastening or sealing of crystals; Clock glasses
G04B39/00 (Watch crystals) appears on 244 US grants and 192 published applications in this corpus.
Search patents in G04B- Granted patents
- 244
- Published applications
- 192
- Assignees
- 93
- Inventors
- 385
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 14 | 0 |
| 1985 | 14 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 3 | 5 |
| 2007 | 2 | 6 |
| 2008 | 5 | 3 |
| 2009 | 2 | 3 |
| 2010 | 1 | 7 |
| 2011 | 2 | 4 |
| 2012 | 2 | 3 |
| 2013 | 6 | 8 |
| 2014 | 4 | 5 |
| 2015 | 3 | 5 |
| 2016 | 9 | 17 |
| 2017 | 7 | 5 |
| 2018 | 6 | 14 |
| 2019 | 6 | 16 |
| 2020 | 11 | 13 |
| 2021 | 5 | 14 |
| 2022 | 17 | 13 |
| 2023 | 11 | 19 |
| 2024 | 11 | 5 |
| 2025 | 14 | 15 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dewar device for watch11 Aug 2026US 12,704,815 B2Omega SA
- Isothermal device for watch28 Jul 2026US 12,693,631 B2Omega SA
- Watch dial with balls14 Jul 2026US 12,681,439 B2The Swatch Group Research and Development Ltd
- Timepiece case and electronic timepiece31 Mar 2026US 12,591,206 B2Casio Computer Co., Ltd.
- Watch glass comprising a decorative element31 Mar 2026US 12,591,207 B2Realization Desal AG
- Process for manufacturing a sapphire timepiece element, and timepiece element27 Aug 2026US 2026/0252032 A1Rolex SA
- Process for manufacturing a sapphire timepiece element, and timepiece element27 Aug 2026US 2026/0252034 A1Rolex SA
- Watch glass20 Aug 2026US 2026/0244160 A1Smiling Rocks IP, Inc.
- Watch bezel with cavity for containing a fluid25 Jun 2026US 2026/0177987 A1The Swatch Group Research and Development Ltd
- Watchcase with rotating bezel30 Apr 2026US 2026/0118826 A1ETA SA Manufacture Horlogere Suisse
Most cited
By later US patents
- Wearable electronic device96US 10,599,101 B2Apple Inc. · 2020
- Digital watch magnifying element78US 4,451,117 A1984
- Wearable electronic device65US 10,627,783 B2Apple Inc. · 2020
- Watch casing62US 4,390,288 ACesar Arnoux, S.A. · 1983
- Structure for fabricating jewelry parts or wrist watches62US 4,817,064 A1989