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.
单回路输电线路直线边坡塔
CN103669970B
China
- Other languages
English - Inventor
冯炳 施月泉 刑琦 俞永军 吕建军 王振峰 李攀峰 周吉安 李春筱 张旭阳 - Current Assignee
- State Grid Corp of China SGCC
- Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd