A61L 9/04
Using substances evaporated in the air without heating
Official title: using substances evaporated in the air without heating
A61L9/04 (Using substances evaporated in the air without heating) appears on 2,710 US grants and 3,127 published applications in this corpus.
Search patents in A61L- Granted patents
- 2,710
- Published applications
- 3,127
- Assignees
- 1,254
- Inventors
- 5,472
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 19 | 0 |
| 1979 | 20 | 0 |
| 1980 | 20 | 0 |
| 1981 | 43 | 0 |
| 1982 | 22 | 0 |
| 1983 | 27 | 0 |
| 1984 | 17 | 0 |
| 1985 | 34 | 0 |
| 1986 | 33 | 0 |
| 1987 | 26 | 0 |
| 1988 | 36 | 0 |
| 1989 | 38 | 0 |
| 1990 | 53 | 0 |
| 1991 | 48 | 0 |
| 1992 | 33 | 0 |
| 1993 | 32 | 0 |
| 1994 | 28 | 0 |
| 1995 | 33 | 0 |
| 1996 | 32 | 0 |
| 1997 | 25 | 0 |
| 1998 | 57 | 0 |
| 1999 | 51 | 0 |
| 2000 | 60 | 0 |
| 2001 | 46 | 14 |
| 2002 | 57 | 71 |
| 2003 | 58 | 92 |
| 2004 | 57 | 120 |
| 2005 | 46 | 126 |
| 2006 | 49 | 135 |
| 2007 | 45 | 108 |
| 2008 | 29 | 133 |
| 2009 | 51 | 95 |
| 2010 | 60 | 104 |
| 2011 | 54 | 98 |
| 2012 | 55 | 102 |
| 2013 | 56 | 77 |
| 2014 | 86 | 141 |
| 2015 | 69 | 111 |
| 2016 | 102 | 132 |
| 2017 | 99 | 167 |
| 2018 | 87 | 165 |
| 2019 | 119 | 166 |
| 2020 | 114 | 160 |
| 2021 | 114 | 175 |
| 2022 | 98 | 142 |
| 2023 | 80 | 167 |
| 2024 | 104 | 148 |
| 2025 | 92 | 108 |
| 2026 | 67 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61L 9/12Apparatus2,202
- A61L 9/042With the help of a macromolecular compound as a carrier or diluent420
- A61L 9/048Air treating gels237
- A61L 9/05Specially adapted to be released by contact with a liquid130
- A61L 9/046With the help of a non-organic compound124
- A61L 9/044With the help of an organic compound other than a macromolecular compound63
Recent patents
- Techniques for olfactory training using scent dispensing devices6 Oct 2026US 12,752,029 B2iRoma Scents A.B. Ltd.
- Device for diffusing volatile substances and method for its manufacturing6 Oct 2026US 12,752,030 B2Zobele Holding SPA
- Volatile composition dispenser with cartridge for multiple volatile compositions6 Oct 2026US 12,752,031 B2The Procter & Gamble Company
- Freshening compositions comprising controlled release modulators29 Sep 2026US 12,746,302 B2Arylessence, Inc.
- Appliance air freshener29 Sep 2026US 12,747,904 B2Electrolux Home Products, Inc.
- Devices and methods for controlled release of volatile active ingredients8 Oct 2026US 2026/0305602 A1
- Device for diffusing volatile substances and method for manufacturing said device8 Oct 2026US 2026/0306692 A1Zobele Holding SPA
- Portable ozone generator for biocidal air and surface treatment8 Oct 2026US 2026/0306693 A1HS Ultra LLC
- Channeled air freshener with multiple release modes8 Oct 2026US 2026/0306694 A1Energizer Auto, Inc.
- Self-adhesive sanitary product comprising alkyl polyglycoside8 Oct 2026US 2026/0308489 A1Henkel AG & Co. KGaA
Most cited
By later US patents
- Foam substrate and micropackaged active ingredient particle composite dispensing materials1,078US 4,828,542 ATwin Rivers Engineering · 1989
- Polysiloxane hydrogels775US 4,136,250 ACiba-Geigy Corporation · 1979
- Orientied microporous film214US 4,867,881 AMinnesota Minning and Manufacturing Company · 1989
- Recording medium and device for generating sounds and/or pictures179US 5,734,590 A1998
- Packaging for controlled release of volatile substances168US 4,145,001 AAmerican Can Company · 1979