Question

我只想找到使用Python和Google专利检索API的专利所有人。

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...

这个结果并没有告诉受让人。我怎么能得到它？

Answer 1

不推荐使用Google专利API（＆＃34; The Google Patent Search API has been officially deprecated as of May 26, 2011.＆＃34;）。我不认为你获得的数据是可靠的。

我不确定Google的服务条款是否允许针对单个Google专利页面，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Beautiful Soup的内容进行解析每个结果。

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，打印出来：

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，我相信您只是在专利发布之日才能获得受让人;在转让的情况下，不是现任受让人。

Answer 2

正如编码gatty所说，Google专利API已经被删除，并且它可能不稳定。如果您正在通过RESTful API端点查找专利数据，IP Street是正确的方法。它非常直接，您可以立即启动并运行。

要查找专利所有者，请在POST的查询中https://api.ipstreet.com/v1/data/patent申请专利号。

这是python 3.X中的一个例子：

import requests
import json

def search_by_patent_number(input):
    """Takes one or more patent numbers and returns a patent data json object"""
    endpoint = 'https://api.ipstreet.com/v1/data/patent'
    headers = {'x-api-key': "YOUR-API-KEY"}
    payload = json.dumps({'q': {'patent_number': input}})

    r = requests.post(url=endpoint, headers=headers, data=payload)

    print(r.text)
    return r.json()

if __name__ == '__main__':

    response = search_by_patent_number(['8541236','7653452'])

    for asset in response['Assets']:
        print(asset['application_date'])

您可以在IP Street Github repo中找到更多代码示例：https://github.com/IPStreet/HelloWorld

以下是他们的开发者文档页面：http://www.ipstreet.com/

Answer 3

改为使用https://www.patentsview.org/ ...

前一段时间，我也在使用Google专利搜索API。它消失了。前面提到的ipstreet API也是如此。

但是我确实发现了https://www.patentsview.org/，它似乎拥有USPTO的祝福和完善的API。对于初学者，请看一下：

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

现在，我正在更新解析器以使用它。

使用谷歌专利API

3 个答案:

改为使用https://www.patentsview.org/ ...