Yan also filed patents for V-Bot's side brush, dust-spillage prevention and automatic obstacle avoidance designs in the US, Taiwan, South Korea and China, spending about NT $ 5 million. "It's money well spent, making me feel more at ease about selling in the American market."
燕成祥也同時將「趴趴走」的邊刷、防止細微灰塵掉漏、自動跨越障礙等設計，在美國、台灣、韓國、中國等地申請專利，大約花了 500 萬台幣，「這筆錢花的很值得，讓我可以放心賣美國市場。」