| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 512 |
| 2021 | 597 |
| 2020 | 502 |
| 2019 | 395 |
| 2018 | 549 |
| 2017 | 318 |
| 2016 | 302 |
| 2015 | 267 |
| 2014 | 283 |
| 2013 | 167 |
| 2012 | 174 |
| 2011 | 148 |
| 2010 | 180 |
| 2009 | 108 |
| 2008 | 142 |
| 2007 | 116 |
| 2006 | 71 |
| 2005 | 66 |
| 2004 | 42 |
| 2003 | 46 |
| 2002 | 39 |
| 2001 | 64 |
| 2000 | 43 |
| 1999 | 47 |
| 1998 | 28 |
| 1997 | 21 |
| 1996 | 20 |
| 1995 | 11 |
| 1994 | 14 |
| 1993 | 7 |
| 1992 | 2 |
| 1991 | 4 |
| 1990 | 3 |