Alex is the co-founder and CEO of Patentext. He’s spent over a decade drafting patents for startups, unicorns like Uber and Dropbox, and everything in between. When he’s not obsessing over Patentext or running his climate tech-focused IP firm, he’s likely training for a triathlon or chasing a very fast border collie.
Developing an effective IP strategy for your company—and for your products—involves more than just filing patents. It requires understanding which assets are worth protecting, what form of protection is best suited for each, and how to allocate limited budget across a portfolio over time.
This guide walks through the core components of a CTO-level IP strategy for deep tech startups, including where founders typically spend too much and where they leave protection on the table.
Understand what you’re actually protecting
IP strategy starts with an inventory. Before deciding what to file, you need a clear picture of what your company’s technical assets actually are.
The four main categories of IP relevant to deep tech startups:
- Patents: Cover novel, non-obvious inventions—processes, devices, compositions, and (with important limitations) software-implemented methods. Patent protection requires public disclosure (in the application) and has high upfront cost but provides the strongest exclusionary rights if granted.
- Trade secrets: Cover confidential information that provides competitive advantage—formulas, processes, algorithms, customer data, manufacturing know-how. No registration required; protection depends on maintaining confidentiality. Can be indefinitely long-lived if properly protected.
- Copyright: Automatically attaches to original creative works upon creation, including software code. Provides narrower protection than patents (only against copying, not independent development), but is free and immediate.
- Trademarks: Cover brand identifiers—names, logos, slogans. Important for customer-facing IP but typically handled separately from core technology IP strategy.
Many technical innovations can be protected through multiple mechanisms simultaneously. A novel manufacturing process might be both patentable and protectable as a trade secret. Understanding the trade-offs is core to the strategy.
The patent vs. trade secret decision
For deep tech startups, the most consequential IP decision is often whether to patent an innovation or keep it as a trade secret. This isn’t always a choice—some innovations are only practical to protect one way—but where a choice exists, the factors are:
File a patent when:
- The innovation can be reverse-engineered from a product or can be independently discovered
- Your exit involves strategic acquirers who value defensible IP
- Patent pending status is useful for fundraising or partnership negotiations
- You want enforceable rights against competitors who copy the invention
Keep as a trade secret when:
- The innovation is genuinely difficult to reverse-engineer or discover independently
- The value is long-lived (beyond the 20-year patent term)
- Public disclosure through a patent would actually help competitors understand what you’re doing
- You can maintain effective security controls over the information
The classic example: Coca-Cola's formula has been a trade secret for over a century. If they had patented it, the patent would have expired decades ago. For innovations where the underlying mechanism can be easily observed from a product, trade secret protection is usually impractical.
Building a patent portfolio: what to file and in what order
Most early-stage companies don’t have the budget to patent everything worth patenting. The goal is to prioritize intelligently.
Tier 1: Core differentiation
The one or two innovations that, if copied by a well-resourced competitor, would directly threaten your market position. File non-provisionals here. Write claims for both broad protection and specific embodiments.
Tier 2: Important but not existential
Valuable features or processes that enhance your product but aren’t core to your moat. File provisionals to establish priority dates, then evaluate conversion based on commercial traction and budget.
Tier 3: Nice to have
Incremental innovations that may be worth protecting eventually but don’t warrant immediate investment. Document thoroughly for potential future filing.
The sequencing matters. File Tier 1 applications before any public disclosure. File Tier 2 provisionals before product launch or fundraise. Tier 3 can wait until post-Series A when you have more capital for prosecution.
The international filing decision
U.S. patents protect only in the U.S. If you have international business or international competitive risk, you’ll need international coverage.
The PCT (Patent Cooperation Treaty) route is the most common approach for startups: file a U.S. application first, then file a PCT application within 12 months. The PCT buys you up to 30 months from the priority date to decide which countries to enter—giving you time to assess commercial traction before committing to country-specific filing costs.
National phase filing costs vary significantly by country:
- Europe (through EPO): $5,000–$15,000 for filing plus translation costs
- China: $3,000–$8,000
- Japan: $3,000–$8,000
- Other major markets: $2,000–$8,000 each
Pursuing international protection in 5–6 major markets can add $30,000–$60,000 to the total patent cost. This is generally a post-Series A investment for most startups.
Employee IP agreements: the foundation that everything else depends on
No patent strategy is complete without proper IP assignment agreements with every employee and contractor. If IP ownership is ambiguous—if there’s any question about whether an innovation was created within the scope of employment or whether IP was properly assigned—patent protection becomes difficult to enforce and due diligence becomes a problem.
Key components of a solid IP agreement:
- Assignment of all inventions conceived or reduced to practice in the course of employment
- Prior inventions schedule (documenting what the employee brings in that isn’t being assigned)
- Confidentiality and trade secret obligations
- Specifically addresses contractor relationships, which require express assignment (unlike employees, where assignment can be implied)
Get this in place before you hire your first engineer. Retrofitting IP agreements with existing employees is complicated and sometimes litigated.
IP documentation: what CTOs overlook
The documentation practices that are boring to maintain are often critical when you need them—in due diligence, litigation, or post-grant proceedings.
Three documentation practices that matter:
- Invention disclosure records: When engineers develop something potentially novel, capture it in writing—what was invented, by whom, when, and what prior art they were aware of. This creates a contemporaneous record of inventorship that can matter in priority disputes.
- Prior art research records: Document the searches you run before filing and why you believe your claims are distinguishable from the prior art. This demonstrates reasonable diligence and can support prosecution decisions.
- Trade secret management logs: For innovations you’re keeping confidential, document the specific protections in place (access controls, NDAs, need-to-know policies). The existence of these controls is often required to prove trade secret status if protection is challenged.
Budget allocation: what a realistic IP budget looks like
For a deep tech startup at different stages:
Pre-seed: $0–$10,000
Focus on getting IP agreements in place and filing 1–2 provisionals on core innovations before any public disclosure.
Seed ($1M–$3M raise): $15,000–$40,000 over 18–24 months
Convert top priority provisionals to non-provisionals. File new provisionals on developments during the seed period. Budget for 1–2 office action responses.
Series A ($5M–$15M raise): $50,000–$150,000 over 24–36 months
Build out a patent portfolio (3–8 applications). Consider PCT and international filing for priority markets. Implement a systematic invention disclosure process.
How Patentext fits into a CTO’s IP strategy
Patentext is built for exactly the seed-stage IP challenge: helping technical founders file high-quality provisional and non-provisional applications at a fraction of traditional law firm costs, with patent agent review at every step.
Our platform handles the structured invention disclosure, AI-assisted drafting, and patent agent review—so CTOs can focus on building, not on managing legal billing.
Disclaimer: This article is for informational purposes only and does not constitute legal advice. Patent laws are complex and vary by jurisdiction. For personalized guidance, consult a qualified patent attorney or agent.