WebDerwent is a patent database covering US and international patents and patent applications back to the 1960s (depending on jurisdiction). So what are patents? Patents are wonderful sources of technical information. … WebMay 13, 2024 · 1 See US Granted Patent Publication Number Series following. 2 See IP Type and Rights Codes following. 3 Various city, place, or local codes (examples include place of filing in records from Italy and city in records from Mexico). Find out more: Patent Publication Number Formats (Help File)
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Web德温特创新平台 (Derwent Innovation, DI)是全世界唯一包含高质量专利技术内容改写信息的专利数据库。 DI包含最高质量的专利数据内容，并以全球标准化的专利数据为基础，包括著录项目、专利说明书全文、专利附图、德温特世界专利索引（DWPI） 及德温特专利引文索引（DPCI）。 在2024年，德温特迎来了全新改版。 更多信息，请浏览官 … WebDerwent Chemistry Resource allows you to browse through the chemical structure database to develop new ideas on compound structure advances and to learn of new … WebBecome Our Customer. Contact us. Or call us at 855-772-1645. S P O N S O R S H O W C A S E. cshell range