| 年份 | 申请发明专利数量 |
|---|---|
| 2024 | — |
| 2023 | — |
| 2022 | 567 |
| 2021 | 580 |
| 2020 | 553 |
| 2019 | 456 |
| 2018 | 428 |
| 2017 | 361 |
| 2016 | 273 |
| 2015 | 211 |
| 2014 | 113 |
| 2013 | 95 |
| 2012 | 108 |
| 2011 | 66 |
| 2010 | 75 |
| 2009 | 51 |
| 2008 | 39 |
| 2007 | 36 |
| 2006 | 43 |
| 2005 | 42 |
| 2004 | 24 |
| 2003 | 30 |
| 2002 | 32 |
| 2001 | 17 |
| 2000 | 28 |
| 1999 | 22 |
| 1998 | 29 |
| 1997 | 26 |
| 1996 | 15 |
| 1995 | 28 |
| 1994 | 14 |
| 1993 | 15 |
| 1992 | 13 |
| 1991 | 19 |
| 1990 | 7 |