File Name: link_WIPOapp_forpri_CNpub_appnum
Observations:
35,412
Description:
This file determines links between file WIPOapp_for_priority
(claiming foreign priority in China) and CNpub_basedat. Specifically, we begin with the WIPO patent
applications making a foreign priority claim based on a CN patent application,
and we match this claim to the patents in the set CNpub_basedat.
For WIPO applications
published in 2012, we don’t expect to find a match in our data set of Chinese
published applications, because the last publication year in the Chinese file
is 2010. Applicants have one year to
file based on foreign priority. This
explains why in the table at the bottom of the file, the match rate for WIPO
applications published in 2012 is only 6.04 percent, and for 2011 is 47.32
percent. For earlier years, the match
rate is typically 93 to 95 percent.
Variables
|
Variable |
Type |
Len |
Columns in Ascii File |
Description |
|
app_numfix |
Char |
12 |
1-12 |
link to CNpub_basedat (app_numfix is the unique index) |
|
country2 |
Char |
2 |
13-14 |
=CN throughout this file. This it country where foreign priority in the WIPO application is being claimed |
|
Pub_No |
Char |
20 |
15-34 |
Pub_no*for_pri_index is the link to WIPOapp_for_priority |
|
for_pri_index |
Num |
8 |
35-42 |
see above |
|
for_pri_record_WIPO |
Char |
40 |
43-82 |
the foreign priority record in WIPO |
|
for_priority_date |
Char |
10 |
83-92 |
the foreign priority date. |
Table Showing Distribution of Matches
by Year of Publication of WIPO Application
(We start
with the 2,183,748 foreign priority claims in WIPOapp_
for_priority and select out 58,746 cases where the
foreign priority claim is a CN patent.
We next select the 52,137 unique values of pub_no. For each pub_no, we
ask if there is at least one match in CNpub_basedat
and the table below reports the results.
|
|
Counts |
Percent |
||
|
Not Matched |
Matched |
Not Matched |
Matched |
|
|
All |
19,581 |
32,556 |
37.56 |
62.44 |
|
year_WIPOapp |
12 |
152 |
7.32 |
92.68 |
|
1999 |
||||
|
2000 |
34 |
162 |
17.35 |
82.65 |
|
2001 |
70 |
1,200 |
5.51 |
94.49 |
|
2002 |
34 |
710 |
4.57 |
95.43 |
|
2003 |
51 |
686 |
6.92 |
93.08 |
|
2004 |
67 |
1,052 |
5.99 |
94.01 |
|
2005 |
94 |
1,287 |
6.81 |
93.19 |
|
2006 |
204 |
2,080 |
8.93 |
91.07 |
|
2007 |
247 |
3,454 |
6.67 |
93.33 |
|
2008 |
228 |
4,475 |
4.85 |
95.15 |
|
2009 |
236 |
5,268 |
4.29 |
95.71 |
|
2010 |
619 |
6,493 |
8.70 |
91.30 |
|
2011 |
5,277 |
4,740 |
52.68 |
47.32 |
|
2012 |
12,408 |
797 |
93.96 |
6.04 |