| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 486 |
| 2021 | 1159 |
| 2020 | 2067 |
| 2019 | 897 |
| 2018 | 655 |
| 2017 | 454 |
| 2016 | 294 |
| 2015 | 293 |
| 2014 | 189 |
| 2013 | 132 |
| 2012 | 120 |
| 2011 | 76 |
| 2010 | 77 |
| 2009 | 78 |
| 2008 | 64 |
| 2007 | 52 |
| 2006 | 25 |
| 2005 | 25 |
| 2004 | 23 |
| 2003 | 25 |
| 2002 | 19 |
| 2001 | 16 |
| 2000 | 35 |
| 1999 | 16 |
| 1998 | 15 |
| 1997 | 29 |
| 1996 | 19 |
| 1995 | 27 |
| 1994 | 26 |
| 1993 | 24 |
| 1992 | 10 |
| 1991 | 27 |
| 1990 | 10 |