independent inventor
英[ˌɪndiˈpendənt ɪnˈventə]美[ˌɪndɪˈpɛndənt ɪnˈventə(r)]
An independent inventor is an inventor who creates inventions by himself.Edward Robinson "They Saved Small Business When corporate America tried to seize the patent system from independent inventors, this Boston couple came to the rescue.