G11B 3/68
Record carriers
G11B3/68 (Record carriers) appears on 122 US grants and 26 published applications in this corpus.
Search patents in G11B- Granted patents
- 122
- Published applications
- 26
- Assignees
- 58
- Inventors
- 198
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 9 | 0 |
| 1982 | 11 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 0 |
| 2018 | 2 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 3/70Characterised by the selection of material or structure67
- G11B 3/682Comprising protective coatings19
- G11B 3/72Groove formations18
- G11B 3/78Multiple-track arrangements13
- G11B 3/685Intermediate mediums9
- G11B 3/687Testing thereof3
- G11B 3/80Incorporating subsidiary guide means for heads, other than modulated grooves2
- G11B 3/90With means indicating prior or unauthorised use0
Recent patents
- Coin or medal with embossed soundtrack14 Jul 2026US 12,682,921 B2Firma
- Process for the preparation of a phonograph disc17 Jun 2025US 12,334,107 B1Universita' Degli Studi Di Roma “La Sapienza”
- Measurement device, measurement method, recording medium, and phonograph record28 Jan 2025US 12,211,518 B2Panasonic Intellectual Property Management Co., Ltd.
- Cutter unit for cutting a phonographic record, cartridge for a cutter unit, blank for a phonographic record and method for reading information from a blank1 Oct 2024US 12,106,781 B2Phonocut Maschinen GmbH
- Gramophone plate with recorded image5 Dec 2023US 11,836,558 B2
- A process for the preparation of a phonograph disc5 Jun 2025US 2025/0182788 A1Universita' Degli Studi Di Roma “La Sapienza”
- Coin or medal20 Feb 2025US 2025/0061918 A1Firma
- Record production devices, systems and methods21 Dec 2023US 2023/0410838 A1Elasticstage Limited
- Cutter unit for cutting a phonographic record, cartridge for a cutter unit, blank for a phonographic record and method for reading information from a blank9 Nov 2023US 2023/0360669 A1Phonocut Maschinen GmbH
- Measurement device, measurement method, recording medium, and phonograph record6 Apr 2023US 2023/0109304 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Multi-aroma cartridge player136US 4,629,604 A1986
- Process for making information carrying discs103US 4,374,077 AMinnesota Mining and Manufacturing Company · 1983
- Candle-powered aroma generator103US 4,781,895 A1988
- Disc-playing aroma generator80US 4,556,539 A1985
- Shape memory alloy recording medium, storage devices based thereon, and method for using these storage devices66US 6,084,849 AInternational Business Machines Corporation · 2000