| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 285 |
| 2021 | 431 |
| 2020 | 322 |
| 2019 | 258 |
| 2018 | 286 |
| 2017 | 214 |
| 2016 | 167 |
| 2015 | 114 |
| 2014 | 137 |
| 2013 | 74 |
| 2012 | 52 |
| 2011 | 56 |
| 2010 | 45 |
| 2009 | 37 |
| 2008 | 27 |
| 2007 | 41 |
| 2006 | 31 |
| 2005 | 22 |
| 2004 | 25 |
| 2003 | 21 |
| 2002 | 23 |
| 2001 | 23 |
| 2000 | 15 |
| 1999 | 15 |
| 1998 | 14 |
| 1997 | 13 |
| 1996 | 17 |
| 1995 | 28 |
| 1994 | 10 |
| 1993 | 21 |
| 1992 | 15 |
| 1991 | 13 |
| 1990 | 7 |