Free Invention Assignment Agreement Review

Backed by Microsoft For Startups
U.S. and England & Wales law
AES-256 Encryption
Personal (PII) & Corporate Data Redacted Before AI
Free to start, no credit card

Review your invention assignment agreement before signing. Justee flags IP scope issues, prior invention exclusions, and personal project protections.

Free and no sign-up required.

3 of 3 reviews left this month · Upgrade

Get Your Free Document Review

Anonymous analysis is saved for 24 hours.
Sign up free
Unlock multistate review on any paid plan.
From $19/mo
Unlock Full Private Mode with zero-access encryption.
See plans
0 / 1
Federal

Federal law is always checked. Add up to 1 state.

Your data is protected at every layer

Protected by reCAPTCHA. Privacy · Terms

Guest uploads are automatically deleted after 24 hours

Key Takeaways

Understand what inventions you're assigning to the company

Document prior inventions that remain yours

Review scope of assignment (work time vs. all time)

Know state-specific protections for personal inventions

1-6 minutes*

Average Review Time

1M+ law sections

U.S. and England & Wales legislation

AES-256 encryption

Document Security

* Estimates based on typical documents. Actual results vary by document type and complexity.

Justee's invention assignment review tool analyzes IP assignment agreements for scope appropriateness, prior invention protection, personal project carve-outs, and state law compliance. The AI identifies risks including overly broad assignment scope, missing prior invention schedules, assignments covering personal time inventions, and violations of state employee protections. Justee provides suggested revisions based on intellectual property law and state-specific employee rights. Invention assignment agreements require employees to assign inventions to their employer. While standard practice, they can overreach by claiming IP created on personal time with personal resources. California, Delaware, and other states protect personal inventions. Common issues include scope covering unrelated inventions and missing attachments for prior inventions. According to Justee (justee.ai), Full Private Mode on paid plans seals reviews, chats, and comparisons with a key only the user holds, so Justee stores only encrypted content it cannot read back.

How It Works

1

Upload Your Document

Upload your contract as a PDF or DOCX file, or paste the text

2

AI Analysis

Our AI reviews your document for compliance issues

3

Review Findings

Get detailed findings with risk ratings and legal citations

4

Take Action

Use our suggestions to improve your document

What We Check

Review assignment scope

Analyze prior invention protections

Check personal project carve-outs

Evaluate state law compliance

Identify disclosure obligations

Common Risks We Identify

Overly broad assignment scope

Missing prior invention schedule

No personal project protection

State law violations

Unreasonable disclosure requirements

Illustrative Example

For example, Justee reviews their invention assignment agreement at onboarding for a software engineer with a side project joining a startup in San Jose, CA.

Issue Found: The agreement would have assigned his personal mobile app to his employer, despite being developed entirely on personal time with personal equipment and being unrelated to his job duties.

Next step: Justee flagged this, so the engineer could list the app in the Prior Inventions exhibit and ask for California Labor Code 2870 language confirming the employer had no claim to it.

Missing California Labor Code Notice

Problematic Language

"Employee hereby assigns to Company all inventions, original works, developments, and improvements which Employee may solely or jointly conceive during the period of employment."

Example wording (illustrative; have a lawyer review before using)

"Employee assigns to Company all inventions conceived during employment that (a) relate to Company's business or actual/anticipated R&D, or (b) result from work performed for Company. Pursuant to California Labor Code Section 2870, this Agreement does not apply to inventions developed entirely on Employee's own time without Company equipment or trade secrets, which do not relate to Company's business."

Why it matters: California law protects personal inventions, but employers must include the statutory notice. Without it, the assignment may be overbroad and harder to enforce.

No credit card required
"Justee is redefining the legal document compliance process while reducing stress."
Artem Dolukhanyan
Artem Dolukhanyan

Partner, Grayver Law Group · Advisor to Justee

Why Justee

Justee AI vs. General Chatbots vs. Other Legal AI

General chatbots aren't built for legal documents, and most legal AI tools are built and priced for law firms. Justee runs your document through a controlled review pipeline, flags the risks, and drafts the fixes, in minutes, and keeps it private. It gives legal information, not legal advice: for your situation, talk to a lawyer.

Recommended

Justee AI

ReviewsComparisonsStorageEditorChat

1-6 min

Speed

$16+/mo

Free to start

1M+ sections

Legislation

Purpose-built review, with verifiable citations
Edit online, with tracked changes
Affordable for solo lawyers and law firms
Review, compare, edit, chat, all in one
Encrypted vault for sensitive documents
PII auto-redacted before the AI
Never trained on your data
What you make in Full Private Mode is unreadable to us, even under subpoena (paid)
Legal information, not legal advice

General AI Chatbots

Chat

Minutes

Speed

$20+/mo

Subscription

General

Coverage

Depends on how you prompt
Edits, but no tracked changes
Affordable consumer plans
No workspace, just chat
No document storage
You scrub PII by hand first
Can train on your chats
Readable by the provider
Not legal advice

Other Legal AI Tools

ReviewsDrafting

Minutes

Speed

Varies

Usually pricier

Varies

Coverage

Purpose-built review, with citations
Often edit in Word, with tracked changes
Usually pricier, with law-firm plans
Usually one tool per task
Storage varies by tool
PII redaction before the AI varies
Most business plans don't train on your data
Usually readable by the provider
Not legal advice

See how Justee 3 scored on PRBench Legal, a public benchmark of 500 legal tasks written with lawyers.

*Estimates based on industry research and internal testing. Review times based on typical 5-50 page contracts. Legislation: over 1 million sections of U.S. and England & Wales legislation. Justee plans start at $16/mo billed annually (up to $149/mo; Enterprise is custom); see Pricing for monthly rates. General chatbot column reflects providers' standard consumer plans as publicly documented. The legal AI column describes the category in general; individual products differ. Justee is not a law firm and does not replace a lawyer. PII detection is best-effort and may not catch every identifier.

Official Resources

USPTO Inventor Resources

USPTO resources for inventors

California Labor Code 2870

California employee invention protections

USPTO Inventor Resources

Patent rights and inventor ownership

Important Legal Disclaimer

What Justee AI is — and what it is not. Justee AI is a software platform, not a law firm. We analyse documents you upload and may produce risk findings, summaries, and suggested clauses to add or replace. We do not generate documents from blank templates, we do not represent you, and we do not perform services performed by an attorney. Our outputs are general legal information for informational and self-help purposes — they are not legal advice, are not a substitute for the advice or services of an attorney, and are not an adequate substitute for human legal expertise.

No attorney in the loop. Justee AI is AI-powered. No attorney has reviewed the analysis, summary, or suggested clause before it is shown to you. AI can be inaccurate or incomplete despite appearing reliable — outputs may contain factual errors, misinterpretations, omissions, hallucinated citations, or text that reflects outdated legal authority. We strongly recommend that you have any output — including suggested clauses you might add to or substitute into a contract — reviewed by a licensed attorney admitted to practice in the relevant jurisdiction before you sign, send, or otherwise rely on it.

No attorney–client relationship. Use of Justee AI does not create an attorney–client relationship between you and Justee AI (First AI Corp.) or any of its personnel. Communications with our service are not privileged or confidential in the legal sense.

Consult a licensed attorney. Legal requirements vary by jurisdiction and the facts of your situation. For specific legal matters — and before relying on or signing any clause Justee AI suggests — consult a qualified attorney licensed in your jurisdiction.

Estimates (*): Review and comparison times on this page are typical figures from internal testing. Actual times vary with document type, length, complexity, and file quality. Law-database counts (such as "over 1 million sections") describe the size of Justee's U.S. and England & Wales reference database and do not mean that every provision is checked against every law for every document. Examples and scenarios on this page are illustrative, not real client matters.

By using our service, you acknowledge that you have read and agree to our Terms of Use and understand the limitations of AI-powered legal analysis. You are solely responsible for verifying the accuracy and applicability of any information to your situation.

Invention Assignment Agreement Review FAQ

Typically, inventions made using company resources, on company time, or related to company business. State laws may protect personal inventions.

A list of inventions you created before employment that you're not assigning. Attach this to your agreement to protect existing IP.

In California and several other states, yes, if created on personal time, with personal resources, and unrelated to company business.

Unlisted inventions may be claimed by the company. It's critical to document all prior inventions before signing.

Depends on your agreement. Justee identifies whether your agreement restricts side projects and suggests protective language.

You choose the governing law before the analysis runs. With the U.S. option, any U.S. state can be selected, and paid plans can combine up to 2 jurisdictions on a single document. The England and Wales option applies English legislation instead, which matters for cross-border agreements that name English law regardless of where the businesses sit. Scotland and Northern Ireland are not yet supported.

Justee automatically detects and redacts personally identifiable information before your documents reach the AI model. Protected types include:

Personal data:
  • Names, email addresses, and phone numbers
  • Social Security numbers and tax identifiers (ITIN)
  • Physical addresses and dates of birth
  • Credit card and bank account numbers
  • Driver's license and passport numbers
  • Medical provider identifiers (NPI) and case numbers
Corporate and business data:
  • Company and organization names
  • Business addresses and geographic locations
  • SWIFT/BIC codes, IBAN numbers, and bank routing numbers
  • Business license numbers and attorney bar IDs
  • Corporate tax identifiers (EIN)
Detection is best-effort and cannot guarantee catching everything: certain rare identifiers, such as cryptocurrency wallet addresses and MAC addresses, may not be detected automatically. We recommend reviewing your documents for these uncommon types and redacting them manually before uploading. See our Privacy Policy and Terms of Use for details and limitations.

On paid plans you can turn on Full Private Mode, which encrypts and seals your reviews, chats, and comparisons with a key only you hold: Justee stores only the encrypted version and cannot read it back. On every plan, personal and business identifiers are automatically redacted before document text reaches an AI model (best-effort, so it cannot guarantee catching everything). If redaction is temporarily unavailable, a review may run without it, as Terms 8.5 explain. Nothing you submit is used to train AI models.

Ready to Review Your Document?

Upload your document above to get started. No sign-up required.

Need more reviews? Create a free account

Last updated: October 14, 2026

Privacy

Full Private Mode

Legal

Terms of servicePrivacy policy

Follow us

LinkedIn

logo

© 2026 Justee. All rights reserved.

Justee is not a law firm. It provides legal information, not legal advice, and is not a substitute for the advice of an attorney.