G04B 31/008
Jewel bearings
Official title: Jewel bearings (G04B31/04 takes precedence)
G04B31/008 (Jewel bearings) appears on 22 US grants and 35 published applications in this corpus.
Search patents in G04B- Granted patents
- 22
- Published applications
- 35
- Assignees
- 15
- Inventors
- 65
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 7 |
| 2020 | 1 | 0 |
| 2021 | 3 | 5 |
| 2022 | 1 | 5 |
| 2023 | 1 | 3 |
| 2024 | 2 | 1 |
| 2025 | 5 | 1 |
| 2026 | 3 | 5 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System for manufacturing a bevelled stone, particularly for a horological movement23 Jun 2026US 12,663,759 B2Comadur SA
- Pinion shaft, watch mechanism, watch or measurement device without a magnetic signature3 Mar 2026US 12,565,711 B2Omega SA
- Pinion shaft, watch mechanism, watch or measurement device without a magnetic signature10 Feb 2026US 12,546,021 B2Omega SA
- Stone, in particular for a horological movement, and the manufacturing method thereof30 Dec 2025US 12,508,668 B2Comadur SA
- Jewel, in particular for a horological movement, and the manufacturing method thereof1 Jul 2025US 12,342,910 B2Comadur SA
- Method and system for washing a timepiece stone9 Jul 2026US 2026/0194861 A1La Pierrette S.A.
- Method for the preparation of a timepiece stone for measuring roughness, and measurement method9 Jul 2026US 2026/0194862 A1Rolex SA
- Method for polishing a timepiece stone, and equipment for carrying out said method2 Jul 2026US 2026/0183889 A1La Pierrette S.A.
- Stone for a horology movement25 Jun 2026US 2026/0177986 A1ETA SA Manufacture Horlogere Suisse
- Timepiece staff7 May 2026US 2026/0126758 A1Rolex SA
Most cited
By later US patents
- Timepiece bearing, movement, and portable timepiece9US 8,702,301 B2Seiko Instruments Inc. · 2014
- Device for pivoting an arbour in a time piece5US 8,317,391 B2ETA SA Manufacture Horlogere Suisse · 2012
- Method for manufacturing a hole jewel1US 11,175,629 B2Comadur SA · 2021
- Rotary wheel set system of a horological movement1US 11,886,151 B2ETA SA Manufacture Horlogere Suisse · 2024
- Pivot organ1US 8,485,719 B2Complitime SA · 2013