Sparlo is a rigorous analysis engine for patent prosecution.
Hand it an office action, a draft, or a patent. Get back a report grounded in the actual record, citation by citation.
14-day free trial · 5 analyses · no card, no demo · cancel anytime.
| Claim | Rejection | Recommended path | Confidence |
|---|---|---|---|
| 19 | §103 | Obtain reference — verify firstCited element not found in retrieved art | unverified |
| 22 | §103 | Argue — conclusory rationaleGrounded in the reference’s own claims | Moderate |
| 26 | §103 | Review — no argument identifiedNo argument or amendment addressed this claim | low |
| 27 | §103 | Obtain reference — verify firstMissing element rests on unretrieved art | unverified |
What it does
Five jobs, each ending in a finished analysis.
Not a platform to move your practice into. Drop in the document; take the analysis.
Respond to an Office Action
The response, worked out before you draft it.
It never argues against art it hasn’t read — an unretrievable reference is flagged, and the claim gets a verify-first posture.
Your stipulations are taken as given. Concede a point and every argument scopes to what’s left contestable.
It ranks arguments and marks what’s fragile. It never tells you a claim is patentable — that call is yours.
You write the response. The analysis is already done when you sit down.
Whether §112(f) is invoked at all — 'filtering' may connote sufficient structure
MPEP § 2181 · § 2173.02
Identify the disclosed filter as the §112(f) corresponding structure — defeats both §112(b) and §112(a)
MPEP § 2181 · § 2163.03
Point to the disclosed structure showing possession, not to redundancy
MPEP § 2163
Reasonable-certainty rebuttal to the §112(b) indefiniteness finding
MPEP § 2173 · § 2173.06(II)
“Assume hypothetical reference X teaches every limitation the examiner maps to it (Fig. 1 elements 1–4, Fig. 2, page 5 lines 10–25). Do not contest X’s teachings. Focus the analysis on the §112 issues and claim construction.”
Provided by the attorney and taken as settled — the analysis scopes its arguments to the remaining contestable points.
Why not just paste it into a chatbot?
A chatbot answers from memory. Sparlo verifies against the record.
Both sound authoritative. Only one is checked. Every analysis runs a fixed multi-stage pipeline over the actual file — and anything it can’t confirm is flagged, not asserted.
Grounded in source text
It reads what the examiner cited
Every cited reference is chased down; every quote is checked against source text. What can’t be retrieved is marked unverified — and never argued against.
USPTO public data
It knows the examiner’s record
Allowance rate, actions to allowance, interview and RCE patterns for the examiner assigned — each with its sample size. The stress test argues as that examiner.
Checkable output
It shows its work
Every argument carries its MPEP section and a one-click verify link. A grounding log records what was checked — and what couldn’t be confirmed.
Proof strips transcribed from the published analysis of App. 19/382,753 — the same public-record run shown in the hero.
Confidentiality architecture
Built for privileged work — checkable line by line.
A careless disclosure isn’t a privacy incident — it’s prior art against your own client. Here is exactly what leaves the boundary, per job.
What leaves the boundary, per job
No training on your inputs, per-report isolation, a data-egress log on every run, and passcode-only sharing. Model calls go directly to Anthropic, with provider failover disabled — your content is never rerouted to another provider.
Example Library
Read a finished analysis.
Every example ran on the public record, through the same pipeline your matter would. Pick one and read the actual work product.
Office Action Analysis · Biotech
Office Action Analysis — App 19650706 (public record)
Office action analysis of application 19650706 — generated on a public USPTO office action, no confidential disclosure.
Per-claim strategy · sample
9-Section deliverable
Pricing
Priced per seat. Standard usage included.
Month-to-month, cancel anytime. Start solo; pool seats or move to a flat firm license when you’re ready.
14 days free · 5 analyses · no card required, cancel anytime
For the individual patent attorney who wants the tool today.
- All five jobs — office action response, draft review, patentability & moat, invalidity search, application drafting
- Standard usage included
- Grounded prior-art citations with one-click verify links
- PDF export
3-seat minimum · usage pooled across the team
For the prosecution practice group working matters together.
- Everything in Attorney, pooled across your team
- Standard usage included
- Matters and docket organization
- Priority support and a team training session
Flat annual license · seats uncapped
For the firm that wants one price and no seat-counting.
- Firmwide flat annual license — seats uncapped
- ZDR, DPA, and a security addendum for your diligence file
- Dedicated onboarding and a redline-calibration program
- Per-matter access controls as they ship, and optional per-matter billing
Every plan includes
- The full security architecture — your disclosure never leaves for outside search and is never used to train a model
- A Data Egress Log on every run — exactly what left the boundary, recorded and reviewable
- Consent controls — the protected terms you confirm are blocked by a deny-list gate before anything leaves
- Passcode-gated share links — the shared page serves the finished analysis only, never the disclosure text
- Pinned to your account, deleted on demand
Run your next office action through it.
Free to start · cancel anytime.