安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Trademarks | USPTO
Find out how to register and maintain a trademark in the U S , apply for an international trademark, and about protecting your registered trademark
- Patent Public Search | USPTO
A powerful, flexible web-based patent search application that improves the overall patent searching process It includes two user selected interfaces that provide enhanced access to prior art
- Patent Public Search Basic (PPUBS Basic) - United States Patent and . . .
To start a quick lookup, enter a single patent or publication number and select the Search button To start a basic search, select a search field, enter your search term, and select the Search button
- Search USPTO. gov
The gov means it’s official Federal government websites often end in gov or mil Before sharing sensitive information, make sure you’re on a federal government site
- Patents | USPTO - United States Patent and Trademark Office
Find out how to apply for and maintain a patent in the U S , and learn about helpful resources
- Contact us | USPTO
Phone numbers, email addresses, and other contact information for USPTO offices and business centers
- Forms for patent applications | USPTO
For general assistance in completing the patent forms below or to request paper copies of the forms, contact the USPTO Contact Center Division at 1-800-786-9199 (1-800-PTO-9199) or 571-272-1000, and select option 2 To report a problem with a fillable patent form, please email ebc@uspto gov
- Search our trademark database | USPTO
A search you complete before applying for a trademark registration to make sure your trademark is available to register for your particular goods or services, and to make sure that no other trademark conflicts with it
|
|
|