使用Google专利api

Question

我只是想用Python和Google专利搜索API来找出专利的所有者。

import urllib2
import json

url = ('https://ajax.googleapis.com/ajax/services/search/patent?' +
       'v=1.0&q=barack%20obama')

request = urllib2.Request(url, None, {})
response = urllib2.urlopen(request)

# Process the JSON string.
print json.load(response)
# now have some fun with the results...

这个结果并没有说明受让人的情况。我怎么才能拿到呢？

Answer 1

谷歌专利API被废弃("截至2011年5月26日，谷歌专利搜索API已被正式否决。")。我不认为你得到的数据是可靠的。

我不确定谷歌的服务条款是否允许与单独的谷歌专利页面相反，但一种策略可能是使用搜索来获取结果列表，然后使用类似于美汤的方法来解析每个结果。

示例：

import urllib2
import json
from bs4 import BeautifulSoup

url = ('https://ajax.googleapis.com/ajax/services/search/patent?' +
       'v=1.0&q=barack%20obama')
request = urllib2.Request(url, None, {})
response = urllib2.urlopen(request)
jsonResponse = json.load(response)
responseData=jsonResponse['responseData']
results = responseData["results"]

print "This doesn't work, no assignee data..."
for result in results:
    print "patent no.: ", result["patentNumber"]
    print "assignee: ", result["assignee"]
    print " "

print "...but this seems to."
for result in results:
    URL = "https://www.google.com/patents/"+result["patentNumber"]
    req = urllib2.Request(URL, headers={'User-Agent' : "python"})
    _file = urllib2.urlopen(req)
    patent_html = _file.read()
    soup = BeautifulSoup(patent_html, 'html.parser')
    patentNumber = soup.find("span", { "class" : "patent-number" }).text
    assigneeMetaTag = soup.find("meta", { "scheme" : "assignee"})
    patentAssignee = assigneeMetaTag.attrs["content"]
    print "patent no.: ", patentNumber
    print "assignee: ", patentAssignee
    print " "

对我来说这是打印出来的：

This doesn't work, no assignee data...
patent no.:  US20110022394
assignee:

patent no.:  US20140089323
assignee:

patent no.:  US8117227
assignee:

patent no.:  CA2702937C
assignee:

...but this seems to.
patent no.:  US 20110022394 A1
assignee:  Thomas Wide

patent no.:  US 20140089323 A1
assignee:  Appinions Inc.

patent no.:  US 8117227 B2
assignee:  Scuola Normale Superiore Di Pisa

patent no.:  CA 2702937 C
assignee:  Neil S. Roseman

请注意，我相信你只有在专利签发之日才能得到受让人，而不是目前的受让人，在转让的情况下。

Answer 2

用https://www.patentsview.org/代替..。

不久前，我还在使用谷歌专利搜索API。它不见了。前面提到的ipstreet也是如此。

但是我确实发现了https://www.patentsview.org/，它似乎得到了USPTO和一个全面的API的支持。首先，看一看：

https://www.patentsview.org/api/query-language.html

现在，我正在更新我的解析器，以代替它。

Answer 3

你应该看看patent_client！它是一个python模块，它使用Django风格的API搜索活跃的USPTO和EPO数据库。然后，任何查询的结果都可以通过简单的DataFrames调用转换成熊猫、.to_pandas()或Series。

对于专利所有权，有两种方法。您可以检查专利的“受让人”字段，也可以搜索转让记录：

from patent_client import Assignment, Patent

# Method 1 - Look at the Assignee listed on the face of a patent

pat = Patent.objects.get("patent number")
pat.assignees
# Gives a list of assignees listed on the patent

# Method 2 - Search Assignment records for recorded assignments
assignments = Assignment.objects.filter(patent_number="patent_number")
# Gives a list of assignment records that include the patent,
# You can browse through the authoritative chain of title as 
# recorded with the USPTO

一个很好的起点是用户指南简介

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PyPI _ GitHub _ 文档

(完全披露-我是patent_client的作者和维护者)