Google Patents Citation Count Change by ID
Pricing
$10.00 / 1,000 patent citation brief createds
Google Patents Citation Count Change by ID
Check the displayed document Cited By count for known Google Patents publication IDs and compare it with optional prior counts. No search, inventor details or legal conclusions. Unofficial.
Pricing
$10.00 / 1,000 patent citation brief createds
Rating
0.0
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Developer
h ichi
Maintained by CommunityActor stats
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2
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1
Monthly active users
a day ago
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Unofficial — independent tool, not affiliated with, endorsed by, or sponsored by Google Patents. It reads only publicly visible pages. Support, reliability guarantees and the full disclaimer are at the bottom of this page.
Check the displayed document-level Cited By count for a known publication ID. Optionally compare it with your own previous displayed count. This is a changing source observation, not a count of new citations, a legal opinion or a patent impact score.
Input
Provide 1–3 exact uppercase publication IDs. previousCitedByCounts is an optional JSON object keyed by those IDs, with nonnegative integer values. Omitted IDs receive a current count without a delta. maxItems and paid event budget select a bounded input-order prefix. No search terms or arbitrary URLs.
Output
One row per fully validated document. citationCountDelta is current minus supplied baseline and countChanged is whether that displayed count differs. Both are omitted when no baseline exists. Counts can change as Google revises its index. The example values are illustrative.
Limits
Read robots.txt for patents.google.com before exact /patent/{ID}/en pages. Do not use search/XHR, proxy, browser evasion or blocked endpoints. Check page identity and parse the document Cited By counter under the primary article, excluding family Cited By. At most three pages, 10 MiB each, sequential with two seconds between requests, 30 seconds per request, 180 seconds total and 256 MB memory. Fail on 403/429, CAPTCHA, redirect, 404, oversized/ambiguous pages, missing counter or dates, and timeouts. Validate all selected pages before dataset delivery.
Privacy
Return only patent ID, date, count, comparison and source provenance. Do not persist raw pages, inventor or assignee names, claims, abstracts or contacts.
Pricing
One citation-brief-created primary PPE event at $0.01 per delivered row; no start or secondary charge.
Source: https://patents.google.com/robots.txt. Google terms and uncertainty are recorded in the dated scout under DR-0007.
If something goes wrong
- Wrong number or a failed run? Open a ticket on the Issues tab. I read every one and reply within 2 business days (Japan time).
- You never get a fake "empty" result. If the site can't be read, the run fails and says so. One validated patent citation-count brief delivered is one billable event. An omitted or failed source row is not charged; earlier delivered rows remain billable after a later write failure.
- Checked every week. An automatic test runs this tool weekly; if the site changes, I fix it.
- Public pages only. No login, no personal data, and it goes easy on the site.
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Disclaimer
Unofficial, independent tool — not affiliated with, endorsed by, or sponsored by Google Patents. Product names and logos belong to their owners and only say where the data comes from. Data is read from public pages, for market research; check before you act on it.
