Following previous post on INPI-OST 30 classes reclassification, now we go deeper into data by application authority for EPO, USPTO and WIPO to see if multiple classes may depend from the patent office.
This time I selected applications with priority date >= 2000, from patstat sept. 2010
Results do no seem to depend much from patent authority.
We could, on same population, try to see what are the most frequent couples of classes that occur on same applications.
Results are following:
This time I selected applications with priority date >= 2000, from patstat sept. 2010
appl auth | # classes | # appln | % |
'EP' | 1 | 653647 | 65,5% |
'EP' | 2 | 255654 | 25,6% |
'EP' | 3 | 67728 | 6,8% |
'EP' | 4 | 16667 | 1,7% |
'EP' | 5 | 3308 | 0,3% |
'US' | 1 | 1834174 | 69,5% |
'US' | 2 | 596356 | 22,6% |
'US' | 3 | 159723 | 6,1% |
'US' | 4 | 38487 | 1,5% |
'US' | 5 | 8193 | 0,3% |
'WO' | 1 | 767030 | 65,2% |
'WO' | 2 | 310052 | 26,3% |
'WO' | 3 | 78302 | 6,7% |
'WO' | 4 | 17512 | 1,5% |
'WO' | 5 | 3260 | 0,3% |
Results do no seem to depend much from patent authority.
We could, on same population, try to see what are the most frequent couples of classes that occur on same applications.
Results are following:
class 1 | class 2 | # couples |
10 | 12 | 156954 |
3 | 4 | 129009 |
10 | 13 | 73177 |
4 | 7 | 67842 |
12 | 13 | 66711 |
2 | 3 | 50143 |
7 | 13 | 47939 |
2 | 4 | 47162 |
1 | 5 | 46314 |
3 | 7 | 39209 |
10 | 15 | 33631 |
2 | 6 | 30287 |
7 | 10 | 29426 |
11 | 19 | 29103 |
5 | 6 | 28878 |
16 | 19 | 25952 |
5 | 16 | 25867 |
7 | 12 | 25820 |
26 | 27 | 25501 |
1 | 7 | 24605 |
18 | 22 | 23338 |
7 | 8 | 22801 |
1 | 6 | 21837 |
8 | 12 | 21167 |
11 | 16 | 20823 |
1 | 16 | 20796 |
12 | 15 | 20540 |
7 | 18 | 20143 |
17 | 18 | 19903 |
7 | 27 | 18857 |
20 | 29 | 18823 |
11 | 15 | 18797 |
5 | 7 | 17673 |
16 | 17 | 17484 |
15 | 18 | 17057 |
4 | 5 | 16852 |
1 | 2 | 16551 |
1 | 4 | 16361 |
10 | 18 | 16020 |
1 | 17 | 15855 |
1 | 3 | 15818 |
3 | 6 | 15812 |
6 | 7 | 15591 |
8 | 29 | 15490 |
1 | 27 | 14921 |
24 | 26 | 14871 |
7 | 29 | 14863 |
13 | 14 | 14353 |
10 | 11 | 14293 |
19 | 20 | 14262 |
4 | 8 | 13897 |
2 | 5 | 13372 |
12 | 14 | 13363 |
19 | 29 | 13042 |
2 | 7 | 12422 |
4 | 29 | 12180 |
7 | 20 | 11859 |
4 | 20 | 11384 |
16 | 18 | 11383 |
6 | 20 | 11327 |
27 | 29 | 11163 |
4 | 6 | 11025 |
24 | 27 | 10956 |
6 | 11 | 10618 |
16 | 20 | 10488 |
16 | 29 | 10438 |
26 | 30 | 10314 |
18 | 19 | 10164 |
15 | 17 | 10140 |
17 | 19 | 10035 |
29 | 30 | 10012 |
Results are cutted for those couple with more than 10.000 occurrences.
The winner is... (10) Organic fine chemistry + (12) Pharmaceuticals; Cosmetics
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