A61F 2002/345
The inner and outer spherical surfaces of a shell
Official title: {the inner and outer (hemi)spherical surfaces of a shell, e.g. an intermediate shell, having distinct centres of rotation, both located on the centre line of the shell}
A61F2002/345 (The inner and outer spherical surfaces of a shell) appears on 49 US grants and 52 published applications in this corpus.
Search patents in A61F- Granted patents
- 49
- Published applications
- 52
- Assignees
- 24
- Inventors
- 97
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
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| 1986 | 0 | 0 |
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| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
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| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 3 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 3 |
| 2014 | 3 | 1 |
| 2015 | 2 | 3 |
| 2016 | 3 | 3 |
| 2017 | 2 | 5 |
| 2018 | 2 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 3 | 2 |
| 2022 | 2 | 5 |
| 2023 | 0 | 0 |
| 2024 | 5 | 5 |
| 2025 | 0 | 0 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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By later US patents
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