| 年份 | 申请发明专利数量 |
|---|---|
| 2022 | 156 |
| 2021 | 233 |
| 2020 | 248 |
| 2019 | 208 |
| 2018 | 202 |
| 2017 | 201 |
| 2016 | 168 |
| 2015 | 212 |
| 2014 | 123 |
| 2013 | 115 |
| 2012 | 86 |
| 2011 | 46 |
| 2010 | 19 |
| 2009 | 19 |
| 2008 | 33 |
| 2007 | 46 |
| 2006 | 24 |
| 2005 | 17 |
| 2004 | 21 |
| 2003 | 13 |
| 2002 | 9 |
| 2001 | 9 |
| 2000 | 8 |
| 1999 | 3 |
| 1998 | 11 |
| 1997 | 1 |
| 1996 | 5 |
| 1995 | 5 |
| 1994 | 10 |
| 1993 | 4 |
| 1992 | 1 |
| 1991 | 0 |
| 1990 | 1 |