G11B 3/44
Styli
Official title: Styli, e.g. sapphire, diamond
G11B3/44 (Styli) appears on 139 US grants and 12 published applications in this corpus.
Search patents in G11B- Granted patents
- 139
- Published applications
- 12
- Assignees
- 39
- Inventors
- 162
- Latest grant
- 2 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 15 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 12 | 0 |
| 1982 | 22 | 0 |
| 1983 | 15 | 0 |
| 1984 | 15 | 0 |
| 1985 | 14 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 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 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 3 |
| 2018 | 3 | 3 |
| 2019 | 1 | 3 |
| 2020 | 3 | 1 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Head shell2 Nov 2021US 11,164,597 B2Kabushiki Kaisha Audio-Technica
- Head shell25 May 2021US 11,017,800 B2Kabushiki Kaisha Audio-Technica
- Optical phono cartridge and system23 Mar 2021US 10,957,353 B1Phix Photonics Assembly
- Record player14 Jul 2020US 10,714,123 B2Shenzhen 1Byone Technology Co., Ltd.
- Methods and coatings for advanced audio recording and playback21 Apr 2020US 10,629,227 B2Georgia Tech Research Corporation
- Read head for a turntable17 Sep 2026US 2026/0279388 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Head shell27 May 2021US 2021/0158838 A1Kabushiki Kaisha Audio-Technica
- Head shell12 Nov 2020US 2020/0357428 A1Kabushiki Kaisha Audio-Technica
- Record player28 Nov 2019US 2019/0362742 A1Shenzhen 1Byone Technology Co., Ltd.
- Systems and methods for reading phonographic record data12 Sep 2019US 2019/0279679 A1
Most cited
By later US patents
- Method and apparatus for electromechanical recording of short wavelength modulation in a metal master37US 4,044,379 ARCA Corporation · 1977
- High density recording system using side-by-side information and servo tracks35US 4,315,283 AVictor Company of Japan, Ltd. · 1982
- Method for forming keel-tipped stylus for video disc systems32US 4,104,832 ARCA Corporation · 1978
- Uniform light exposure of positive photoresist for replicating spiral groove in plastic substrate25US 4,308,337 ARCA Corporation · 1981
- Keel-tipped stylus for video disc systems24US 4,162,510 ARCA Corporation · 1979