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Global Patent Search Network As a result of cooperative effort between the United States Patent and Trademark Office (USPTO) and State Intellectual Property Office (SIPO) of the People’s Republic of China, Chinese patent documentation is now available for search and retrieval from th
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Please note that the URLs to EFS-Web and Private PAIR have changed. ... //efs. uspto. gov/efile/portal/efs-unregistered 3. EFS-Web Portal homepage: https://efs. uspto. gov ...
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Patent Attorneys and Agents Registered to Practice before the USPTO Boards & Counsel > OED > Patent Attorney/Agent Search > Listings by Geographic Region Patent Attorneys ...
Electronic Business Center - United States Patent and ... 2014年9月22日 - search for patents | search for trademarks ... The Patent Electronic Business Center (EBC) assists customers with ... E-mail: ebc@uspto.gov