Apply a problem-solution style obviousness check to avoid hindsight when combining prior art.
problem-solution-path spectrum before-after A drone dock patent application claims pre-heating a battery based on predicted wind exposure before landing. Prior art heats the battery after landing. Problem-solution check: closest prior art -> difference -> objective problem -> would-have reason The common trap is hindsight: using the applicant's solution as the reason a skilled person would have combined references. Problem-solution obviousness check Closest prior art Choose the most relevant starting point. Objective problem Define the problem from the technical effect of the difference. Would-have reason Ask whether prior art would prompt the claimed solution. Start with the dock that heats the…
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