E04C 5/203
Circular and spherical spacers
Official title: {Circular and spherical spacers}
E04C5/203 (Circular and spherical spacers) appears on 44 US grants and 48 published applications in this corpus.
Search patents in E04C- Granted patents
- 44
- Published applications
- 48
- Assignees
- 27
- Inventors
- 62
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 4 | 2 |
| 2017 | 1 | 4 |
| 2018 | 2 | 2 |
| 2019 | 4 | 4 |
| 2020 | 3 | 6 |
| 2021 | 2 | 0 |
| 2022 | 4 | 2 |
| 2023 | 1 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
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