Use this skill when managing patents, trademarks, trade secrets, or open-source licensing. Triggers on intellectual property, patents, trademarks, trade secrets, open-source licensing, copyright, IP strategy, license compliance, and any task requiring IP protection or licensing decisions.
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Disclaimer: This skill provides general educational information about intellectual property concepts and practices. It is not legal advice. Always consult a qualified IP attorney before making decisions that may have legal consequences for your organization.
Intellectual property management is the practice of identifying, protecting, and leveraging the intangible assets of an organization - inventions, brand identity, creative works, and confidential know-how. For software companies, IP decisions affect competitive moats, open-source strategy, hiring, M&A, and regulatory exposure. This skill covers the full IP lifecycle: choosing the right protection mechanism, complying with open-source license obligations, managing patents and trademarks, and building policies that prevent IP loss.
Trigger this skill when the user:
Do NOT trigger this skill for:
Protect early - IP rights are often time-sensitive. Patent applications in most jurisdictions operate on a first-to-file basis. Trademark rights are strengthened by early registration and consistent use. Waiting until a product launches to think about IP protection means leaving gaps that competitors can exploit.
Open-source licenses have real obligations - Using open-source code is not free of legal risk. Copyleft licenses (GPL, AGPL) impose reciprocal disclosure requirements. Ignoring these obligations can result in forced open-sourcing of proprietary code, injunctions, and reputational damage. Every dependency has a license; treat it as a contract.
Trade secrets need active protection - A trade secret is only legally protected if the owner takes reasonable steps to keep it secret. That means access controls, NDAs, confidentiality policies, and employee training. A trade secret shared carelessly in a public Slack channel or leaked through a contractor is lost forever.
IP assignment in employment contracts must be explicit - In most jurisdictions, work created by an employee in the scope of their job belongs to the employer by default - but "scope" is ambiguous. Contractor work is often not assigned by default. Every employment and contractor agreement must contain an explicit, broad IP assignment clause. Audit historical agreements before an acquisition.
Audit regularly - Open-source dependency licenses change between versions. New hires bring IP from former employers. Contractors create work under unclear ownership. Regular IP audits - at least annually and before any M&A process - catch problems while they are still fixable.
| Type | What it protects | Duration | Registration required? |
|---|---|---|---|
| Patent | Novel inventions and processes | ~20 years from filing | Yes (national or regional patent office) |
| Trademark | Brand identifiers: names, logos, slogans | Indefinite (with renewal and use) | Not required, but registration strengthens rights |
| Copyright | Original creative works (code, docs, designs) | Life of author + 70 years (varies) | Not required; arises automatically on creation |
| Trade secret | Confidential business information with economic value | Indefinite (as long as kept secret) | Never (registration would disclose it) |
When to use which:
Licenses range from permissive (few obligations) to strong copyleft (reciprocal disclosure required). The spectrum:
Permissive Weak copyleft Strong copyleft
| | |
MIT Apache 2.0 LGPL GPL AGPL
| | | | |
Use freely, + patent grant, Linking OK, Modifications Network use
attribution + patent peace but mods to must be GPL must be AGPL
only clause lib = LGPL
See references/license-comparison.md for a detailed comparison table including
BSL (Business Source License) and compatibility matrix.
Default rules (varies by jurisdiction):
| Relationship | Default ownership | Common exceptions |
|---|---|---|
| Full-time employee | Employer owns work created in scope of employment | Work created on personal time with personal resources, unrelated to employer's business |
| Contractor (independent) | Contractor owns the work unless assigned | Must have a written "work-for-hire" clause or explicit assignment |
| Intern / student | Often unclear - must be specified in agreement | Academic work may belong to the university |
Risk at M&A: Acquirers conduct IP due diligence. Missing assignments, unclear contractor agreements, and "moonlighting" projects create escrow holdbacks and deal risk. Audit before starting any fundraising or acquisition process.
Decision matrix:
1. Do you want to allow proprietary use without sharing back?
YES -> Go to step 2
NO -> Choose GPL-3.0 (or AGPL-3.0 if server-side use matters)
2. Do you want a patent grant to protect users?
YES -> Apache-2.0 (preferred for corporate use)
NO -> MIT (simplest, most permissive)
3. Is this a library that will be linked into proprietary apps?
YES -> Consider LGPL-2.1 or MIT/Apache (LGPL allows proprietary linking)
NO -> MIT or Apache-2.0
4. Do you want a time-delayed open-source commitment (startup model)?
YES -> BSL (Business Source License) with a defined change date
5. Is this infrastructure software where SaaS competition is the concern?
YES -> AGPL-3.0 (requires disclosure even for network use)
Practical recommendations:
Compliance audit process:
Inventory all dependencies - Run a software composition analysis (SCA) tool:
license-checker, licensee, or fossapip-licenses or licensechecklicense-maven-plugin or gradle-license-plugingo-licensesClassify by risk tier:
| Tier | Licenses | Action |
|---|---|---|
| Green | MIT, BSD-2, BSD-3, ISC, Apache-2.0 | Approved; attribution required |
| Yellow | LGPL-2.1, LGPL-3.0, MPL-2.0, CDDL | Legal review required; use restrictions apply |
| Red | GPL-2.0, GPL-3.0, AGPL-3.0, SSPL | Block unless product is also open-source |
| Unknown | No license, custom license | Block; contact maintainer or find alternative |
Generate NOTICE/CREDITS file - Include all required attributions. Apache-2.0 requires reproduction of the NOTICE file. MIT requires copyright notice.
Track license changes on upgrades - Licenses can change between major versions (e.g., BSL projects that have not yet reached their change date may tighten terms).
Automate in CI - Add SCA tool to CI pipeline. Fail the build on Red-tier licenses appearing without explicit approval.
Process (US - USPTO; adapt for other jurisdictions):
Clearance search - Before filing, search the USPTO TESS database and common-law sources (web, app stores, domain registrations) for confusingly similar marks in the same class. A conflicting mark is grounds for refusal or opposition.
Identify goods/services class - Trademarks are registered per Nice Classification class. Software products typically use Class 42 (software as a service) and/or Class 9 (downloadable software). Registering in the wrong class provides no protection.
Choose filing basis:
File the application - Via USPTO TEAS Plus (lower fee, stricter requirements) or TEAS Standard. Include: mark drawing, goods/services description, filing basis, specimen (if use-based).
Respond to office actions - Examiner may issue office actions requesting clarification or raising refusals. Respond within 3 months (extendable to 6).
Maintain the registration - File a Section 8 Declaration of Use between years 5 and 6 after registration, and renew every 10 years. Failure to maintain = cancellation.
International: Use the Madrid Protocol via WIPO to file in multiple countries with a single application based on a home-country registration or application.
Trade secret protection program:
Identify what qualifies - Document all information that has economic value from being secret: source code, ML model weights, pricing algorithms, customer lists, roadmap, formulas. Create and maintain a trade secret register.
Access controls - Restrict access to need-to-know. Use role-based access in code repositories, databases, and documentation systems. Log all access.
Agreements:
Physical and digital security - Encrypt sensitive data at rest and in transit. Enforce MFA on systems holding trade secrets. Monitor for and respond to data exfiltration alerts.
Offboarding procedure - Revoke access on the day of departure. Collect devices. Send a reminder letter referencing ongoing confidentiality obligations. For senior departures, consider exit interviews with counsel present.
Response to misappropriation - If a trade secret is leaked: preserve evidence, engage counsel immediately, assess Defend Trade Secrets Act (DTSA) claim in the US, seek injunctive relief before the information spreads further.
Key decisions:
File or not? Patents are expensive ($15k-$50k+ per patent to grant in the US) and take 2-4 years. File only for inventions that are novel, non-obvious, useful, and represent a real competitive moat or defensive value.
Provisional vs. non-provisional - File a provisional patent application first ($3,200 small entity / $1,600 micro entity) to establish a priority date cheaply. You have 12 months to file the non-provisional application.
Defensive publication - If you do not want to file a patent but want to prevent competitors from patenting an invention, publish a defensive disclosure (e.g., via IP.com or the Linux Foundation's Open Invention Network).
Patent maintenance - US utility patents require maintenance fees at years 3.5, 7.5, and 11.5 after grant. Missing a fee abandons the patent. Track all deadlines.
Patent landscape analysis - Before entering a new technical area, commission a freedom-to-operate (FTO) analysis to identify blocking patents. Do not rely on in-house engineers to self-assess FTO risk.
Minimum required clauses:
IP assignment - "All work product, inventions, and deliverables created by Contractor in connection with this agreement are hereby assigned to [Company], including all intellectual property rights therein."
Work-for-hire language - Include "to the extent any work product qualifies as a work made for hire under 17 U.S.C. § 101, it shall be a work made for hire."
Prior IP carve-out - Require contractor to list any pre-existing IP they intend to use in deliverables. Obtain a license to that IP, or prohibit its use.
Non-disclosure - Contractor agrees to keep all Company confidential information secret during and after the engagement.
No third-party IP - Contractor warrants that deliverables do not infringe third-party IP and do not incorporate GPL/AGPL code without written approval.
Red flags to investigate during contractor onboarding:
Minimum viable IP policy for a software company:
Scope - What IP the policy covers (code, inventions, trademarks, data, documents).
Ownership - All IP created by employees within the scope of employment belongs to the company. All IP created by contractors under agreement belongs to the company.
Open-source use policy - Approved license tiers (Green/Yellow/Red classification). Process for requesting approval of Yellow or Red licenses. Prohibition on committing AGPL/GPL code to proprietary repositories without legal review.
Open-source contribution policy - Process for contributing company code to external open-source projects. Requires manager + legal approval for non-trivial contributions.
Trade secret handling - Definition of confidential information. Access control requirements. NDA requirements for third parties.
Reporting obligations - Employees must disclose inventions to the company within 30 days of creation. Use a standard invention disclosure form.
Enforcement and review - Policy reviewed annually. Violations are a disciplinary matter.
| Mistake | Why it is wrong | What to do instead |
|---|---|---|
| Shipping without a license file | No license = "all rights reserved" by default; users cannot legally use the code | Always include a LICENSE file; even internal tools should have an explicit license |
| Using AGPL dependencies in a SaaS product without review | AGPL requires the entire application source to be disclosed to users who interact with it over a network | Audit with SCA tools; replace AGPL dependencies or obtain a commercial license |
| Treating trademark as permanent without maintenance | USPTO cancels registrations that are not maintained with use declarations and renewal filings | Calendar all trademark maintenance deadlines at registration; assign an owner |
| Letting contractors start work before signing an IP agreement | Work created before the agreement is signed may not be assignable retroactively | Block repository access and contract start until agreements are countersigned |
| Filing a patent without an FTO analysis | You may be infringing an existing patent in the same space, creating liability | Commission an FTO analysis before building in a new technical domain |
| Sharing trade secrets in public Slack channels or unprotected documents | Trade secret status is lost once publicly disclosed - permanently | Use access-controlled systems; label confidential documents; train employees |
For detailed guidance on specific IP management domains, load the relevant
file from references/:
references/license-comparison.md - open-source license comparison table (MIT, Apache-2.0, GPL, LGPL, AGPL, BSL), compatibility matrix, and use-case guidanceOnly load a references file when the current task requires it.
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