| 年份 | 申请发明专利数量 |
|---|---|
| 2022 | 160 |
| 2021 | 219 |
| 2020 | 241 |
| 2019 | 179 |
| 2018 | 223 |
| 2017 | 426 |
| 2016 | 406 |
| 2015 | 401 |
| 2014 | 232 |
| 2013 | 128 |
| 2012 | 77 |
| 2011 | 50 |
| 2010 | 53 |
| 2009 | 33 |
| 2008 | 34 |
| 2007 | 26 |
| 2006 | 50 |
| 2005 | 13 |
| 2004 | 16 |
| 2003 | 7 |
| 2002 | 10 |
| 2001 | 6 |
| 2000 | 7 |
| 1999 | 4 |
| 1998 | 8 |
| 1997 | 5 |
| 1996 | 8 |
| 1995 | 10 |
| 1994 | 4 |
| 1993 | 13 |
| 1992 | 5 |
| 1991 | 6 |
| 1990 | 1 |