I've been recently asked whether the number of epo applications would be a good proxy for docdb patent family. In reality it dipends from the average number of EPO applications in each of those families.
I expected the figure to be around 1 but I made a few calcs and, after removing a number of patent fmailies without any EPO (non PCT) application, I got a 1.0887 that is quite confirming the hypotesys.
Here the full counts of number of docdb family by number of EP applications.
I expected the figure to be around 1 but I made a few calcs and, after removing a number of patent fmailies without any EPO (non PCT) application, I got a 1.0887 that is quite confirming the hypotesys.
Here the full counts of number of docdb family by number of EP applications.
N EP
|
N docdb fam
|
0
|
47930863
|
1
|
3002328
|
2
|
106275
|
3
|
15404
|
4
|
4537
|
5
|
1738
|
6
|
846
|
7
|
440
|
8
|
240
|
9
|
144
|
10
|
93
|
11
|
74
|
12
|
47
|
13
|
41
|
14
|
22
|
15
|
20
|
16
|
16
|
17
|
9
|
18
|
9
|
19
|
15
|
20
|
6
|
21
|
10
|
22
|
1
|
23
|
3
|
24
|
4
|
25
|
3
|
26
|
4
|
28
|
2
|
29
|
1
|
30
|
1
|
31
|
1
|
36
|
1
|
38
|
1
|
42
|
1
|
44
|
2
|
46
|
1
|
47
|
1
|
58
|
1
|
331
|
1
|
1650
|
1
|
3645
|
1
|
99668
|
1
|
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