Submitting a patent for sale is the beginning of a process, not the end of one. Understanding what happens after you submit — and what to expect at each stage — helps you stay engaged and make good decisions along the way.
When you submit a patent for sale through a broker or platform, the first step is an internal assessment to determine whether the patent is commercially viable. This review considers claim scope, technology sector activity, remaining patent life, and whether identifiable buyers are likely to exist in the broker's network.
Not every submission passes this review. A reputable broker will give you an honest assessment — and if your patent is not commercially viable, that assessment is itself valuable because it saves you time and prevents false expectations. If the patent does not pass initial review, a good broker will explain why and, where possible, suggest steps that might change the outcome (such as filing a continuation application to pursue broader claims).
If your patent passes the initial review, the broker prepares marketing materials. This typically includes a blind profile — a summary of the technology and claims that allows initial buyer conversations without revealing the patent number — and in some cases a more detailed claim chart mapping your claims to identified commercial products.
During this phase, the broker may ask you for additional information: the prosecution history file, any prior licensing or litigation history, technical details about the invention's commercial applications, and background on your own commercial activities related to the patent.
The broker begins contacting potential buyers — typically starting with companies the broker has established relationships with and who are active acquirers in your technology sector. Initial contacts are made under the broker's name, without revealing your identity, using the blind profile.
This phase takes time. Buyers are busy, and even interested ones may take weeks to respond substantively. The broker will typically run simultaneous outreach to multiple buyers to generate competitive interest.
When a buyer expresses serious interest, they sign a non-disclosure agreement that allows the patent number and full details to be revealed. The buyer then conducts their own due diligence: technical review, claim analysis, prior art search, and valuation. This phase commonly takes four to eight weeks.
During due diligence, you may be asked to participate in a technical call with the buyer's engineering or legal team to answer questions about the invention. These calls are standard and are a positive signal that the buyer is seriously engaged.
If due diligence goes well, the buyer makes an offer. The offer may be structured as an outright purchase price, a royalty-bearing license, or a hybrid. The broker negotiates on your behalf, and this stage can range from a quick back-and-forth to an extended process depending on the parties and deal complexity.
When terms are agreed, a patent assignment agreement is drafted, reviewed by both parties' legal counsel, and executed. The assignment is then recorded with the relevant patent offices. In the US, this is done through the USPTO's Assignment Division. Recording typically takes two to four weeks after execution, though electronic filing can be immediate.
Payment is typically made at or around closing, though earn-out components may be paid over time according to the agreed schedule.
Be responsive. Slow responses to buyer questions during due diligence frequently cause deals to fall apart or drag on unnecessarily. Have your patent file — prosecution history, inventor declarations, prior art search results — organized and ready to provide quickly. And maintain realistic price expectations throughout the process. The most avoidable cause of failed transactions is a seller who is unwilling to accept fair market value when a legitimate offer arrives.
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