U.S. Presidents and patents: Who is the only U.S. President to invent and hold a U.S. patent? Context: He patented a device to buoy vessels over shoals (Patent No. 6469, 1849). Choose the correct name.
General Knowledge
Inventions
Difficulty: Easy
Choose an option
Answer
Correct Answer: Abraham Lincoln
Explanation
Given data
- The question seeks the only U.S. President who held a patent.
- Device: buoying vessels over shoals and obstructions.
ReasoningAbraham Lincoln received U.S. Patent 6469 on May 22, 1849 for a flotation device to lift boats over shoals, making him the only U.S. President with a patent.
Common pitfalls
- Choosing Jefferson (a prolific inventor and designer) — he never held a U.S. patent.
Final AnswerAbraham Lincoln.