| 年份 | 申请发明专利数量 |
|---|---|
| 2022 | 169 |
| 2021 | 221 |
| 2020 | 207 |
| 2019 | 215 |
| 2018 | 179 |
| 2017 | 161 |
| 2016 | 137 |
| 2015 | 122 |
| 2014 | 128 |
| 2013 | 115 |
| 2012 | 96 |
| 2011 | 65 |
| 2010 | 86 |
| 2009 | 83 |
| 2008 | 65 |
| 2007 | 37 |
| 2006 | 50 |
| 2005 | 37 |
| 2004 | 31 |
| 2003 | 27 |
| 2002 | 42 |
| 2001 | 31 |
| 2000 | 26 |
| 1999 | 33 |
| 1998 | 23 |
| 1997 | 17 |
| 1996 | 25 |
| 1995 | 19 |
| 1994 | 9 |
| 1993 | 24 |
| 1992 | 16 |
| 1991 | 14 |
| 1990 | 11 |