Verifying against the live site and live WHOIS/DNS…
Common questions
Is patent.com.cn legit or a scam?
AboutUs doesn't label sites "legit" or "a scam": this page lists the dated registration, DNS, HTTPS, mail-authentication and safety checks we could verify, each with its source, so you can decide for yourself.
Who owns patent.com.cn?
Nobody has completed AboutUs's owner verification for patent.com.cn. That's true of most sites here — it isn't itself a warning sign.
Correct a description, link or other detail. Submissions are reviewed before publication.
Lifeline · patent.com.cn over time
Checked in the last 30 daysOlder, dated recordFrom registration records
On AboutUs since 2006 · 1 registrar change since Dec 17, 2015 · no ownership change on record since 2011 · last checked Aug 17, 2026.
Registration
No registration date on file yet. AboutUs reads it from RDAP when the site is checked.
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 21, 2006 – Nov 4, 2013An AboutUs wiki page described patent.com.cn from Jun 21, 2006 to Nov 4, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006Jul 1, 2006“专利,下载,发明,实用新型,外观设计,文献,信息,中国,中国专利信息,国家知识产权局,知识产权,检索,全文,技术,推广,广告,专利登记簿,Chinese Patent information, intellectual property, sipo, inventions, patents, marks, trademarks, patent searching, advertizement”Source: AboutUs wiki archive, 2006
Registrar
北京中科三方网络技术有限公司*Dec 17, 2015Registrar 北京中科三方网络技术有限公司* in the registration data recorded on Dec 17, 2015.Source: WHOIS / RDAP archive (who.is)北京国科云计算技术有限公司（原北京中科三方网络技术有限公司）
Ownership
Ownership recordsAug 16, 2011 – May 15, 2026Registration records for patent.com.cn are held from Aug 16, 2011 to May 15, 2026 (53 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
No ownership changes recorded, 2011–2026
Zone file
No nameserver records held, Apr 2012 – Dec 2015Nameservers: com.cnAug 16, 2011 – Apr 3, 2012Registration records listed com.cn nameservers (ns3.sanfront.com.cn, ns5.sanfront.com.cn) for patent.com.cn from Aug 16, 2011 to Apr 3, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
No certificate recorded yet.
2010201520202025Jan ’26← last 12 months, drawn wider
Every dated fact on this lifeline (9)
Jun 21, 2006 – Nov 4, 2013AboutUs record: An AboutUs wiki page described patent.com.cn from Jun 21, 2006 to Nov 4, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023
Aug 16, 2011 – May 15, 2026Ownership: Registration records for patent.com.cn are held from Aug 16, 2011 to May 15, 2026 (53 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Aug 16, 2011 – Apr 3, 2012Zone file: Registration records listed com.cn nameservers (ns3.sanfront.com.cn, ns5.sanfront.com.cn) for patent.com.cn from Aug 16, 2011 to Apr 3, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
Dec 17, 2015Registrar: Registrar 北京中科三方网络技术有限公司* in the registration data recorded on Dec 17, 2015.Source: WHOIS / RDAP archive (who.is)
Dec 17, 2015 – May 15, 2026
Current AboutUs record
Jun 23, 2026 – Aug 17, 2026 (latest)
Authority and Safety last refreshed Aug 17, 2026.
Source: AboutUs checks
北京国科云计算技术有限公司（原北京中科三方网络技术有限公司）
Jan 12, 2025 – May 15, 2026 (latest)
Registrar 北京国科云计算技术有限公司（原北京中科三方网络技术有限公司） in the WHOIS and RDAP records held for patent.com.cn, from Jan 12, 2025 to May 15, 2026.
Source: WHOIS / RDAP archive (who.is)
Nameservers: sfn.cn
Nameservers: sfn.cnDec 17, 2015 – May 15, 2026Registration records listed sfn.cn nameservers (ns1.sfn.cn, ns2.sfn.cn) for patent.com.cn from Dec 17, 2015 to May 15, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to sfn.cnDec 17, 2015patent.com.cn's nameservers moved from com.cn to sfn.cn at some point between Apr 3, 2012 and Dec 17, 2015. Last seen at com.cn: Apr 3, 2012 (registration record). First seen at sfn.cn: Dec 17, 2015 (registration record). AboutUs holds no nameserver records for the about 4 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Zone file: Registration records listed sfn.cn nameservers (ns1.sfn.cn, ns2.sfn.cn) for patent.com.cn from Dec 17, 2015 to May 15, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Dec 17, 2015Zone file: patent.com.cn's nameservers moved from com.cn to sfn.cn at some point between Apr 3, 2012 and Dec 17, 2015. Last seen at com.cn: Apr 3, 2012 (registration record). First seen at sfn.cn: Dec 17, 2015 (registration record). AboutUs holds no nameserver records for the about 4 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Jan 12, 2025 – May 15, 2026Registrar: Registrar 北京国科云计算技术有限公司（原北京中科三方网络技术有限公司） in the WHOIS and RDAP records held for patent.com.cn, from Jan 12, 2025 to May 15, 2026.Source: WHOIS / RDAP archive (who.is)
Jun 23, 2026 – Aug 17, 2026AboutUs record: Authority and Safety last refreshed Aug 17, 2026.Source: AboutUs checks
1 of 2 safety checks passed (Oct 29, 2026).
AboutUs could not get a response over HTTPS when it checked (Oct 29, 2026)
Make sure the site responds over HTTPS with a valid certificate.
AboutUs has not vetted this site. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.
Current facts
Latest available measurements; dated entries retain their dates. These are measurements, not an endorsement of the site.
not yet retrieved
Registrar and registration date not retrieved yet — we retry on every view.
We withhold an authority number until independent evidence (global rank, link-graph presence) has accrued. The facts we do have about this site are shown below — we'd rather say “not enough signals yet” than invent a low score.
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 72 days ago); 3/3 transport and email checks available (oldest recorded about 72 days ago). This is evidence coverage, not a probability that a website is safe.
Recorded HTTPS check did not confirm a valid connection
What patent.com.cn said about itself, 2006
Quoted from the site's AboutUs wiki page in each year it changed (1 version). These are the page's own words at the time, not AboutUs's assessment. New words · dropped words