| 年份 | 申请发明专利数量 |
|---|---|
| 2022 | 206 |
| 2021 | 194 |
| 2020 | 196 |
| 2019 | 195 |
| 2018 | 238 |
| 2017 | 224 |
| 2016 | 207 |
| 2015 | 107 |
| 2014 | 140 |
| 2013 | 76 |
| 2012 | 83 |
| 2011 | 67 |
| 2010 | 39 |
| 2009 | 36 |
| 2008 | 39 |
| 2007 | 28 |
| 2006 | 43 |
| 2005 | 11 |
| 2004 | 10 |
| 2003 | 6 |
| 2002 | 5 |
| 2001 | 10 |
| 2000 | 9 |
| 1999 | 6 |
| 1998 | 2 |
| 1997 | 2 |
| 1996 | 6 |
| 1995 | 5 |
| 1994 | 2 |
| 1993 | 1 |
| 1992 | 2 |
| 1991 | 2 |
| 1990 | 0 |