CN207004478U - 采油井井口油水截止控制器 - Google Patents
采油井井口油水截止控制器 Download PDFInfo
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- CN207004478U CN207004478U CN201720854069.XU CN201720854069U CN207004478U CN 207004478 U CN207004478 U CN 207004478U CN 201720854069 U CN201720854069 U CN 201720854069U CN 207004478 U CN207004478 U CN 207004478U
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GR01 | Patent grant | ||
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Effective date of registration: 20180802 Address after: 163453 Daqing, Heilongjiang, Guangdong Province, Hun Road District, Chengfeng south two road north public building A11 Business Service Building 9 Patentee after: Daqing Danfeng Petroleum Technology Development Co., Ltd. Address before: 157000 No. 9 team, Bei'an cattle village, Bei'an Township, Mudanjiang, Heilongjiang Patentee before: Zheng Lihua |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200401 Address after: 163453 business service 10, No.12 commercial and residential building, jiulongda community, No.100, Sahuan East Road, Sartu District, Daqing City, Heilongjiang Province Patentee after: DAQING XINGHUA TIANYI OIL DRILLING EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 163453 Daqing, Heilongjiang, Guangdong Province, Hun Road District, Chengfeng south two road north public building A11 Business Service Building 9 Patentee before: DAQING DANFENG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CB03 | Change of inventor or designer information |
Inventor after: Li Kaiming Inventor after: Meng Tongyu Inventor after: Jia Guangsheng Inventor after: Li Mengting Inventor after: Niu Lifeng Inventor after: Yang Zhen Inventor after: Zheng Lihua Inventor after: Jia Shoutian Inventor after: Ren Yongqing Inventor after: Ren Xiangcai Inventor after: Zhang Youxing Inventor before: Yang Zhen Inventor before: Zheng Lihua Inventor before: Jia Shoutian Inventor before: Ren Yongqing Inventor before: Ren Xiangcai Inventor before: Zhang Youxing Inventor before: Meng Tongyu Inventor before: Jia Guangsheng |
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CB03 | Change of inventor or designer information | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220124 Address after: 163000 room 402, gate 2, No. 503, Donghu community, Donghu street, Ranghulu District, Daqing City, Heilongjiang Province Patentee after: Niu Lifeng Address before: 163453 No.10, commercial and residential building, No.12, jiulongda community, No.100, Sahuan East Road, Saertu District, Daqing City, Heilongjiang Province Patentee before: DAQING XINGHUA TIANYI OIL DRILLING EQUIPMENT MANUFACTURING Co.,Ltd. |
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TR01 | Transfer of patent right |