| 年份 | 申请发明专利数量 |
|---|---|
| 2022 | 223 |
| 2021 | 276 |
| 2020 | 284 |
| 2019 | 231 |
| 2018 | 436 |
| 2017 | 331 |
| 2016 | 262 |
| 2015 | 134 |
| 2014 | 122 |
| 2013 | 111 |
| 2012 | 82 |
| 2011 | 46 |
| 2010 | 31 |
| 2009 | 32 |
| 2008 | 18 |
| 2007 | 17 |
| 2006 | 13 |
| 2005 | 13 |
| 2004 | 9 |
| 2003 | 13 |
| 2002 | 6 |
| 2001 | 13 |
| 2000 | 6 |
| 1999 | 9 |
| 1998 | 12 |
| 1997 | 7 |
| 1996 | 5 |
| 1995 | 2 |
| 1994 | 1 |
| 1993 | 2 |
| 1992 | 0 |
| 1991 | 1 |
| 1990 | 0 |