C11B 9/00
Essential oils
Official title: Essential oils; Perfumes
C11B9/00 (Essential oils) appears on 2,984 US grants and 2,023 published applications in this corpus.
Search patents in C11B- Granted patents
- 2,984
- Published applications
- 2,023
- Assignees
- 547
- Inventors
- 3,516
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 130 | 0 |
| 1977 | 65 | 0 |
| 1978 | 103 | 0 |
| 1979 | 77 | 0 |
| 1980 | 98 | 0 |
| 1981 | 127 | 0 |
| 1982 | 118 | 0 |
| 1983 | 108 | 0 |
| 1984 | 107 | 0 |
| 1985 | 111 | 0 |
| 1986 | 90 | 0 |
| 1987 | 59 | 0 |
| 1988 | 40 | 0 |
| 1989 | 33 | 0 |
| 1990 | 48 | 0 |
| 1991 | 49 | 0 |
| 1992 | 34 | 0 |
| 1993 | 39 | 0 |
| 1994 | 42 | 0 |
| 1995 | 17 | 0 |
| 1996 | 31 | 0 |
| 1997 | 16 | 0 |
| 1998 | 33 | 0 |
| 1999 | 26 | 0 |
| 2000 | 26 | 0 |
| 2001 | 43 | 9 |
| 2002 | 38 | 30 |
| 2003 | 25 | 52 |
| 2004 | 20 | 48 |
| 2005 | 26 | 35 |
| 2006 | 27 | 34 |
| 2007 | 28 | 45 |
| 2008 | 23 | 45 |
| 2009 | 36 | 49 |
| 2010 | 39 | 72 |
| 2011 | 21 | 55 |
| 2012 | 33 | 43 |
| 2013 | 41 | 76 |
| 2014 | 48 | 115 |
| 2015 | 81 | 111 |
| 2016 | 63 | 154 |
| 2017 | 96 | 135 |
| 2018 | 97 | 138 |
| 2019 | 81 | 98 |
| 2020 | 83 | 122 |
| 2021 | 85 | 129 |
| 2022 | 79 | 103 |
| 2023 | 60 | 92 |
| 2024 | 55 | 105 |
| 2025 | 81 | 84 |
| 2026 | 48 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C11B 9/0026Compounds containing an alicyclic ring not condensed with another ring852
- C11B 9/0007Aliphatic compounds705
- C11B 9/0069Heterocyclic compounds616
- C11B 9/0042Compounds containing condensed hydrocarbon rings613
- C11B 9/0061Compounds containing a six-membered aromatic ring not condensed with another ring427
- C11B 9/02Recovery or refining of essential oils from raw materials282
- C11B 9/0003Compounds of unspecified constitution defined by the chemical reaction for their preparation87
Recent patents
- Alicyclic alcohol, alicyclic alcohol composition, and perfume composition22 Sep 2026US 12,741,920 B2Mitsubishi Gas Chemical Company, Inc.
- Process for making flavor and fragrant compounds8 Sep 2026US 12,729,387 B2Firmenich SA
- Furan compound and its use in fragrance formulations1 Sep 2026US 12,723,033 B2International Flavors & Fragrances Inc.
- Mixture of 3-hexen-1-ol isomers and a process of preparing same25 Aug 2026US 12,715,829 B2Agan Aroma & fine chemicals Ltd.
- Method for monitoring or validating fragrance compositions4 Aug 2026US 12,700,480 B2BASF SE
- Use of alkyl 4-alkoxypentanoates as aroma chemicals8 Oct 2026US 2026/0308477 A1BASF SE
- (3aS,4aR,5S,7aS,9R,9aR)-2,2,5,8,8,9a-hexamethyloctahydro-4H-4a,9-methanoazuleno[5,6-d][1,3]dioxole24 Sep 2026US 2026/0285827 A1Givaudan SA
- High performance fragrance compositions for rinse-off conditioner10 Sep 2026US 2026/0263347 A1International Flavors & Fragrances Inc.
- Method for producing a musk fragrance intermediate using copper catalysts10 Sep 2026US 2026/0265168 A1International Flavors & Fragrances Inc.
- Novel derivatives of glycerol10 Sep 2026US 2026/0265214 A1Symrise AG
Most cited
By later US patents
- Process of encapsulating an oil and product produced thereby151US 3,971,852 APolak's Frutal Works B.V. · 1976
- 3-Levo-Menthoxypropane-1,2-diol151US 4,459,425 ATakasago Perfumery Co., Ltd. · 1984
- Process for removal of basic materials94US 5,018,540 APhilip Morris Incorporated · 1991
- Method for purifying (-)-N-isopulegol and citrus perfume composition containing (-)-N-isopulegol obtained by the method90US 5,773,410 ATakasago International Corporation · 1998
- Compositions containing fluorine substituted olefins90US 7,279,451 B2Honeywell International Inc. · 2007