FI if we would look into espacenet for application number 143781 we would get the following 7 results:
| 1 Molding for a front glass Publication info: US5553428 (A) - 1996-09-10 2 Display tab for overwrapped package Publication info: US4779733 (A) - 1988-10-25 3 Welding socket for thermoplastic materials, method and apparatus for its manufacture. Publication info: DK143781 (A) - 1981-10-01 4 WIRBELBETTVERFAHREN ZUR DURCHFUEHRUNG VON ENDOTHERMEN CHEMISCHEN UND/ODER PHYSIKALISCHEN PROZESSEN Publication info: BE814393 (A1) - 1974-08-16 5 Information handling apparatus Publication info: US3248560 (A) - 1966-04-26 6 Magnetic unit Publication info: US2163161 (A) - 1939-06-20 7 System of gas control Publication info: US1348379 (A) - 1920-08-03 | |||||||||||||
Application number: BE19740143781 19740430
But having a deeper look into the results we will discover that we have 5 hits for USPTO, that means (using the same mechanism)
US19930143781 19931101
US19880143781 19880114
US19610143781 19611009
US19370143781 19370520
US19170143781 19170122
so at what extent duplication of application is spread?
by running a simple query like the one below we may get some results...
Select
patstat.tls201_appln.APPLN_AUTH,
patstat.tls201_appln.APPLN_NR,
Count(patstat.tls201_appln.APPLN_ID) As appcount
From
patstat.tls201_appln
Group By
patstat.tls201_appln.APPLN_AUTH, patstat.tls201_appln.APPLN_NR
Having
Count(patstat.tls201_appln.APPLN_ID) > 1
What we get is that out of a table counting 63.595.305 applications, 5.805.769 are duplicated.
How... lets aggragate a bit the results....
| count of duplications | count of appl # |
| 2 | 5721284 |
| 3 | 83472 |
| 4 | 979 |
| 5 | 29 |
| 6 | 1 |
| 7 | 3 |
| 9 | 1 |
| Total count: | 5805769 |
(the lucky application with 9 occurrence is TW85219019)
Obviously by multipling the count of duplications for the number of occurrences we get
11.697.081 applications involved in the issue...
Splitting by country and comparing it to the total number of applications by country we get that the distribution varies a lot from country to country: from the 0,03 of CN or 0,06 of EP up to the 50.73 % of SE
| appln auth | # of duplicated ap nr | total # of applications | % |
| AM | 2 | 147 | 1,36% |
| AP | 12 | 4742 | 0,25% |
| AR | 408 | 79581 | 0,51% |
| AT | 6334 | 1028408 | 0,62% |
| AU | 683801 | 1553990 | 44,00% |
| BA | 44 | 344 | 12,79% |
| BE | 4639 | 642989 | 0,72% |
| BG | 11611 | 53602 | 21,66% |
| BR | 58551 | 496326 | 11,80% |
| BY | 20 | 761 | 2,63% |
| CA | 2390 | 2580140 | 0,09% |
| CH | 8672 | 1055204 | 0,82% |
| CL | 10 | 4453 | 0,22% |
| CN | 826 | 2803867 | 0,03% |
| CS | 1765 | 166312 | 1,06% |
| CU | 26 | 2843 | 0,91% |
| CY | 2 | 2621 | 0,08% |
| CZ | 5617 | 66921 | 8,39% |
| DD | 8937 | 266209 | 3,36% |
| DE | 1506427 | 6792342 | 22,18% |
| DK | 12118 | 429570 | 2,82% |
| EA | 32 | 13114 | 0,24% |
| EC | 2 | 4949 | 0,04% |
| EE | 1298 | 6251 | 20,76% |
| EG | 160 | 11450 | 1,40% |
| EM | 4 | 4254 | 0,09% |
| EP | 1441 | 2388584 | 0,06% |
| ES | 195371 | 902689 | 21,64% |
| FI | 20051 | 271371 | 7,39% |
| FR | 104899 | 2917043 | 3,60% |
| GB | 133141 | 3319126 | 4,01% |
| GR | 194 | 97444 | 0,20% |
| GT | 4 | 1301 | 0,31% |
| HK | 34 | 69450 | 0,05% |
| HR | 154 | 11297 | 1,36% |
| HU | 17796 | 137061 | 12,98% |
| IB | 8 | 65369 | 0,01% |
| ID | 4561 | 14768 | 30,88% |
| IE | 773 | 91248 | 0,85% |
| IL | 1155 | 160970 | 0,72% |
| IN | 358 | 66238 | 0,54% |
| IS | 57 | 7797 | 0,73% |
| IT | 161988 | 708724 | 22,86% |
| JP | 7567660 | 16282860 | 46,48% |
| KE | 28 | 1392 | 2,01% |
| KR | 279459 | 1659443 | 16,84% |
| KZ | 4 | 477 | 0,84% |
| LT | 22 | 3651 | 0,60% |
| LU | 34 | 68491 | 0,05% |
| LV | 26 | 4835 | 0,54% |
| MA | 4 | 10092 | 0,04% |
| MC | 682 | 2789 | 24,45% |
| MD | 554 | 4586 | 12,08% |
| MK | 2 | 87 | 2,30% |
| MN | 12 | 246 | 4,88% |
| MX | 1262 | 162007 | 0,78% |
| MY | 26 | 11106 | 0,23% |
| NL | 17313 | 607873 | 2,85% |
| NO | 1610 | 226939 | 0,71% |
| NZ | 30 | 109638 | 0,03% |
| OA | 100 | 12934 | 0,77% |
| PE | 8 | 431 | 1,86% |
| PH | 339 | 23261 | 1,46% |
| PL | 2263 | 233730 | 0,97% |
| PT | 112 | 81034 | 0,14% |
| RO | 472 | 61095 | 0,77% |
| RU | 2117 | 394084 | 0,54% |
| SE | 421795 | 831377 | 50,73% |
| SG | 595 | 51063 | 1,17% |
| SI | 235 | 17619 | 1,33% |
| SK | 614 | 23261 | 2,64% |
| SU | 3977 | 1249050 | 0,32% |
| TR | 837 | 42800 | 1,96% |
| TT | 2 | 52 | 3,85% |
| TW | 2956 | 369739 | 0,80% |
| UA | 748 | 50213 | 1,49% |
| US | 434521 | 11376401 | 3,82% |
| UY | 66 | 6573 | 1,00% |
| VN | 8 | 240 | 3,33% |
| WO | 39 | 5065 | 0,77% |
| XH | 2 | 1242 | 0,16% |
| YU | 91 | 33687 | 0,27% |
| ZA | 749 | 256542 | 0,29% |
| ZM | 4 | 2742 | 0,15% |
| ZW | 10 | 2909 | 0,34% |
From table have been excluded 9779 applications from 86 lesser patent offices that have no duplications.
Thanks also to Elena Verdolini for rising and helping investigating this issue.
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