diff --git a/ippisite/ippidb/ws.py b/ippisite/ippidb/ws.py
index 10332f73938de1dc73d07aefa7eadedef2fcdf6d..190c4ef13c30151ffb7e1f11fc3a67570ede063c 100644
--- a/ippisite/ippidb/ws.py
+++ b/ippisite/ippidb/ws.py
@@ -77,85 +77,6 @@ def get_pubmed_info(pmid):
     }
 
 
-def get_epo_info(patent_number):
-    """
-    Retrieve information about a patent using the EPO website
-
-    WARNING: this is not to be used anymore, the 3.1 version of the EPO service is now
-    offline
-
-    :param patent_number: patent number
-    :type patent_number: str
-    :return: patent metadata (title, journal name, publication year, authors list).
-    :rtype: dict
-    """
-    resp = requests.get(
-        f"http://ops.epo.org/3.1/rest-services/published-data/publication/docdb/"
-        f"{patent_number}/biblio.json"
-    )
-    data = resp.json()
-    exchange_doc = data["ops:world-patent-data"]["exchange-documents"][
-        "exchange-document"
-    ]
-    if isinstance(exchange_doc, list):
-        exchange_doc = exchange_doc[0]
-    title = [
-        el["$"]
-        for el in exchange_doc["bibliographic-data"]["invention-title"]
-        if el["@lang"] == "en"
-    ][0]
-    authors = [
-        i["inventor-name"]["name"]["$"]
-        for i in exchange_doc["bibliographic-data"]["parties"]["inventors"]["inventor"]
-        if i["@data-format"] == "original"
-    ][0]
-    biblio_year = [
-        el["date"]["$"][:4]
-        for el in exchange_doc["bibliographic-data"]["publication-reference"][
-            "document-id"
-        ]
-        if el["@document-id-type"] == "epodoc"
-    ][0]
-    return {
-        "title": title,
-        "journal_name": None,
-        "biblio_year": biblio_year,
-        "authors_list": authors,
-    }
-
-
-def get_google_patent_info_ris(patent_number):
-    """
-    Retrieve information about a patent using the Google RIS web service
-
-    WARNING: this is not to be used anymore, this Google Web service is now offline
-
-    :param patent_number: patent number
-    :type patent_number: str
-    :return: patent metadata (title, journal name, publication year, authors list).
-    :rtype: dict
-    """
-    url = "https://encrypted.google.com/patents/{}.ris".format(patent_number)
-    resp = requests.get(url)
-    title = None
-    authors = []
-    biblio_year = None
-    for line_str in resp.text.split("\n"):
-        line = line_str.strip().split("  - ")
-        if line[0] == "A1":
-            authors.append(line[1])
-        elif line[0] == "T1":
-            title = line[1]
-        elif line[0] == "Y1":
-            biblio_year = line[1].split("/")[0]
-    return {
-        "title": title,
-        "journal_name": None,
-        "biblio_year": biblio_year,
-        "authors_list": authors,
-    }
-
-
 def get_google_patent_info(patent_number):
     """
     Retrieve information about a patent parsing Dublin Core info in the Google HTML