Is AutoPatent free to use?

Yes. AutoPatent offers free patent search and optimization trials. A Pro plan is available for advanced features.

Which patent databases does AutoPatent search?

AutoPatent searches global patent databases including CNIPA (China), USPTO (USA), EPO (Europe), JPO (Japan), KIPO (Korea), WIPO, and more.

How does AI patent optimization work?

AutoPatent compares your invention description against existing patents in CNIPA, USPTO, EPO, and other databases. It then rewrites your description to emphasize novel technical features and differentiate from similar existing patents, with itemized explanations for each change.

Can AutoPatent guarantee my patent will be approved?

No tool can guarantee patent approval. AutoPatent helps you strengthen your application by identifying potential conflicts and suggesting improvements, but final approval depends on the patent office.

Is my patent idea kept confidential?

Yes. AutoPatent does not store your patent ideas permanently. All searches are processed in-memory and not shared with third parties.

Prior-art date ranges now display in the comparison sidebar

When comparing your draft against prior art, timing context matters as much as textual overlap. Starting 2026-07-25, the AutoPatent comparison sidebar displays the filing date and publication date range for every pinned reference directly beside its title. You no longer need to open the full document to check whether a reference predates your priority date or falls inside a grace period. The date range appears as a compact YYYY-MM-DD to YYYY-MM-DD span, color-coded to indicate whether the reference was published before or after your earliest filing date. This is a workflow improvement for timeline assessment during prior-art review; it does not constitute a legal opinion on novelty or obviousness. Inventors should still confirm critical dates with qualified patent counsel before making filing or freedom-to-operate decisions. Contact: sapsap@qq.com.