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6 posts
lightsword1496
Last seen: 09/05/2022 - 15:38
Joined: 06/17/2022 - 09:59
Why some patents are not in uspatentcitation.dta while also very new?

Dear PV team,

I'm using patent information from KPSS (a paper: Kogan, L., Papanikolaou, D., Seru, A. and Stoffman, N., QJE 2017)

When merge with uspatentcitation.dta in order to get cited patents information, I found some patents appears in KPSS but not in uspatentcitation.dta as patent_id. This is related to one of my previous thread since I use patent.dta in previous step as well, so one of the reason is in the combination of KPSS and patent.dta, some patents are too early, while uspatentcitation start with patents after 1976. However, I found many patents missing in uspatentcitaion and they are relatively new (after 1976), for instance: 10743107, 7330629,10217140, etc. 

Does anyone know why this is the case? I do found another thread that patentview miss some patents (around 300), but the cases I found are more than that (I just show a few example above)

 

Another question is: if patent A is a parent or subsidiary of patent B, will both of them be recorded? For instance, when I search US 20040005928 A1, I found it is "parent continuation-in-part-of 10217140 20020813 US PENDING". Can someone tell me what this means and how it is recorded in the PV dataset?

Thanks a lot! 

Mon, 08/22/2022 - 21:58
PVTeam
Role: moderator
Last seen: 11/29/2024 - 15:02
Joined: 10/17/2017 - 10:47
Hello! Please let me know if…

Hello! Please let me know if I am understanding your question correctly - you are working with a paper that was published in 2017 and searching for citations on the patent(s) discussed there, but are not able to find them in the PV bulk download tables. 

If this is correct, you may want to try a more targeted approach and pull citation information from a specific period of time or for a specific set of patents using our Query Builder tool. PatentsView does not remove withdrawn patents from our database, but we do mark those that are withdrawn using a dummy variable in the patent file. For the most part, the patent table and uspatentcitation table have a one-to-many relationship such that each patent will have many citations.

I will check on your last question and get back to you!

Thank you,

PVTeam

Thu, 08/25/2022 - 15:22
PVTeam
Role: moderator
Last seen: 11/29/2024 - 15:02
Joined: 10/17/2017 - 10:47
Parent relationships in USRELDOC

We would have parent child relationships in our usreldoc table in bulk downloads. PV does not have information in this table for pre-granted published applications before the year 2005. So only patent applications published after 2005 would be found in this table. 

Thank you,

PVTeam

Sat, 08/27/2022 - 05:50
lightsword1496
Last seen: 09/05/2022 - 15:38
Joined: 06/17/2022 - 09:59
Dear PV Team, Thanks a lot…

Dear PV Team,

Thanks a lot for the reply, I'm using the 2020 extended version of KPSS. I will check this and come back to you if there is any further questions.

Best!

Sat, 08/27/2022 - 05:54
lightsword1496
Last seen: 09/05/2022 - 15:38
Joined: 06/17/2022 - 09:59
Dear PV Team, a further…

Dear PV Team,

a further question is what kind of patents are not available in your bulk download files but available in the query builder? Are they from a specific period or a specific type? or just random patents?

Thanks a lot!

Thu, 09/22/2022 - 10:50
PVTeam
Role: moderator
Last seen: 11/29/2024 - 15:02
Joined: 10/17/2017 - 10:47
Hello,  We do not have…

Hello, 

We do not have files or data in the Query Builder which is not available in the bulk download tables. Additionally, we have pre-grant patent applications in the bulk downloads which are not available to query in the Builder. 

There are some summed fields available in the QB which are not present in the bulk download files. For example, the fields that return the length of time a patent was pending from application to grant. This is a summed field which the Query Builder generates from an API equation of publication date - application date = patent processing time.
The full list of Query Builder fields and descriptions is available in the tool's data dictionary, but please let us know if you have additional questions!

Thank you,

PVTeam