E04B 2001/849
Groove or slot type openings
Official title: {Groove or slot type openings}
E04B2001/849 (Groove or slot type openings) appears on 49 US grants and 32 published applications in this corpus.
Search patents in E04B- Granted patents
- 49
- Published applications
- 32
- Assignees
- 38
- Inventors
- 96
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 1 | 3 |
| 2016 | 3 | 2 |
| 2017 | 1 | 1 |
| 2018 | 5 | 3 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 3 |
| 2022 | 1 | 3 |
| 2023 | 3 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound insulating element and a suspended ceiling system6 Jan 2026US 12,516,523 B2Saint-Gobain Ecophon AB
- Sound insulation panel and sound insulation structure comprising the same4 Feb 2025US 12,217,731 B2Jjns Co., Ltd.
- Acoustic panel comprising offset grooves3 Sep 2024US 12,077,966 B2SWISS KRONO Tec AG
- Sound absorbing structure having one or more acoustic scatterers attached to a transparent panel26 Dec 2023US 11,854,522 B2Toyota Jidosha Kabushiki Kaisha
- Modular workspace system19 Sep 2023US 11,761,194 B2OFS Brands Inc.
- A sound insulating element and a suspended ceiling system11 Apr 2024US 2024/0117631 A1Saint-Gobain Ecophon AB
- Sound insulation panel and sound insulation structure comprising the same9 Nov 2023US 2023/0360624 A1Jjns Co., Ltd.
- Modular microfluidics platform19 Oct 2023US 2023/0330660 A1Parallel Fluidics
- Acoustic panel comprising offset grooves3 Nov 2022US 2022/0349186 A1SWISS KRONO Tec AG
- Joint tape22 Sep 2022US 2022/0298801 A13D Coatings GmbH & Co. KG
Most cited
By later US patents
- Airborne-sound-absorbing wall or ceiling paneling46US 4,347,912 A1982
- Vinyl covered sound absorbing structure42US 4,487,793 AArmstrong World Industries, Inc. · 1984
- Acoustic diffuser panels and wall assembly comprised thereof35US 6,209,680 B12001
- Acoustical board32US 3,991,848 AFrigitemp Corporation · 1976
- Sound absorbing and diffusing unit, an acoustic screen and a decorative sound absorbing panel30US 4,207,964 A1980