Patents
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Search by Cooperative Patent Classifications (CPCs): These are commonly used to represent ideas in place of keywords, and can also be entered in a search term box. If you're searching forseat belts, you could also search for B60R22/00 to retrieve documents that mention safety belts or body harnesses. CPC=B60R22 will match documents with exactly this CPC, CPC=B60R22/low matches documents with this CPC or a child classification of this CPC.
Learn MoreKeywords and boolean syntax (USPTO or EPO format): seat belt searches these two words, or their plurals and close synonyms. "seat belt" searches this exact phrase, in order. -seat -belt searches for documents not containing either word.
For searches using boolean logic, the default operator is AND with left associativity. Note: this means safety OR seat belt is searched as (safety OR seat) AND belt. Each word automatically includes plurals and close synonyms. Adjacent words that are implicitly ANDed together, such as (safety belt), are treated as a phrase when generating synonyms.
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Learn MoreSearch specific patents by importing a CSV or list of patent publication or application numbers.
拱顶竖向位移实时监测设备
CN109059828A
China
- Other languages
English - Inventor
王俊刚 肖永强 胡毅 张磊 孙承学 于歆晨 张明 王祥宇 王克华 范作松 周运刚 王伟旭 蒋青春 张雪峰 徐仁宇 黄涛 周辉 姜吉利 - Current Assignee
- Qingdao University of Technology