| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 290 |
| 2021 | 432 |
| 2020 | 416 |
| 2019 | 335 |
| 2018 | 292 |
| 2017 | 235 |
| 2016 | 218 |
| 2015 | 199 |
| 2014 | 176 |
| 2013 | 114 |
| 2012 | 78 |
| 2011 | 88 |
| 2010 | 44 |
| 2009 | 40 |
| 2008 | 41 |
| 2007 | 19 |
| 2006 | 18 |
| 2005 | 15 |
| 2004 | 18 |
| 2003 | 20 |
| 2002 | 11 |
| 2001 | 3 |
| 2000 | 13 |
| 1999 | 13 |
| 1998 | 9 |
| 1997 | 8 |
| 1996 | 13 |
| 1995 | 4 |
| 1994 | 10 |
| 1993 | 7 |
| 1992 | 9 |
| 1991 | 2 |
| 1990 | 2 |