C07C 2603/94
Containing "free" spiro atoms
Official title: containing "free" spiro atoms
C07C2603/94 (Containing "free" spiro atoms) appears on 319 US grants and 408 published applications in this corpus.
Search patents in C07C- Granted patents
- 319
- Published applications
- 408
- Assignees
- 179
- Inventors
- 1,085
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 4 |
| 2003 | 6 | 7 |
| 2004 | 3 | 7 |
| 2005 | 5 | 8 |
| 2006 | 7 | 6 |
| 2007 | 2 | 10 |
| 2008 | 3 | 11 |
| 2009 | 4 | 16 |
| 2010 | 8 | 17 |
| 2011 | 11 | 8 |
| 2012 | 5 | 10 |
| 2013 | 5 | 17 |
| 2014 | 14 | 18 |
| 2015 | 14 | 22 |
| 2016 | 16 | 19 |
| 2017 | 21 | 22 |
| 2018 | 22 | 32 |
| 2019 | 20 | 21 |
| 2020 | 20 | 23 |
| 2021 | 15 | 23 |
| 2022 | 10 | 21 |
| 2023 | 21 | 35 |
| 2024 | 21 | 18 |
| 2025 | 13 | 21 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device21 Apr 2026US 12,606,741 B2Semiconductor Energy Laboratory Co.Ltd.
- Organic electroluminescent element and electronic device24 Mar 2026US 12,583,864 B2Idemitsu Kosan Co., Ltd.
- Compounds for a controlled release of active perfuming molecules24 Mar 2026US 12,584,082 B2Firmenich SA
- Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device3 Feb 2026US 12,543,494 B2Idemitsu Kosan Co., Ltd.
- Heterocyclic compound and organic light-emitting device comprising same20 Jan 2026US 12,528,763 B2Lt Materials Co., Ltd.
- Compound, Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device27 Aug 2026US 2026/0250571 A1Semiconductor Energy Laboratory Co.Ltd.
- Aromatic amine compound, electroluminescent device, and display apparatus20 Aug 2026US 2026/0247854 A1Boe Technology Group Co., Ltd.
- Protease inhibitors for treating or preventing coronavirus infection23 Jul 2026US 2026/0209180 A1Merck Sharp & Dohme Corp.
- Gamma-aminobutyric acid derivative comprising polycyclic structure, method for preparing same, and use thereof25 Jun 2026US 2026/0174682 A1Shanghai Institute of Materia Medica, Chinese Academy of Sciences
- Spiro compound comprosing asymmetric alkyl substitution and organic electroluminescent device18 Jun 2026US 2026/0173749 A1Guangdong Aglaia Optoelectronic Materials Co., Ltd
Most cited
By later US patents
- Spiro compounds and their use as electroluminescence materials179US 5,840,217 AHoechst Aktiengesellschaft · 1998
- Photovoltaic cell59US 5,885,368 AHoechst Aktiengesellschaft · 1999
- Compounds and organic electroluminescent devices48US 9,595,681 B2Merck Patent GmbH · 2017
- Chrysene derivative and organic electroluminescent device using the same39US 8,221,907 B2Idemitsu Kosan Co., Ltd. · 2012
- Glucagon antagonists/inverse agonists35US 6,503,949 B1Noro Nordisk A/S · 2003