约 14,300,000 个结果
在新选项卡中打开链接
  1. USPTO Kids - United States Patent and Trademark Office

  2. Patent process overview | USPTO

  3. Patent essentials | USPTO - United States Patent and Trademark …

  4. How to Create an Invention (9-Step Guide) - MAKO Design

  5. The patent process: A step-by-step timeline for inventors

  6. The Five Stages of Invention Development | Patents and …

  7. Navigating the Invention Process: From Conception to Creation

  8. Documenting Invention: Prototypes and Invention—An Inquiry …

  9. The Invention Process: A Step By Step Process to Create an Invention

  10. Invention - SpringerLink