Average Co-Inventor Count = 7.32
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Welead Infrastructure Engineering Technology (zhengzhou), Ltd. (8 from 15 patents)
2. Zhengzhou Tobacco Research Institute of Cntc (5 from 5 patents)
3. Infrastructure Renewal Institute of Southern China (4 from 9 patents)
4. Chinese Academy of Sciences (3 from 3,101 patents)
5. Safekey Engineering Technology (zhengzhou), Ltd. (3 from 18 patents)
6. Zhengzhou University (2 from 34 patents)
7. China Tobacco Jiangxi Industrial Co., Ltd. (2 from 2 patents)
8. Infrastructure Renewal Institute of Southern California (1 from 1 patent)
9. China Tobacco Yunnan Industrial Co., Ltd (57 patents)
14 patents:
1. 12422330 - System for online testing of packaging tightness of cigarette boxes
2. 11927504 - Non-destructive testing method for tightness degree of small cigarette box packaging
3. 11796394 - Automatic multichannel apparatus for assessing hot coal fallout propensity of burning cigarettes and assessing method thereof
4. 11708933 - Pipeline radar and television inspection robot
5. 11653692 - Apparatus for assessing hot coal fallout propensity of burning cigarettes based on human behavior features of ash-tapping action and method thereof
6. 11618802 - Polymer expanding material used in infiltration or seepage watery environment and preparation method thereof
7. 11585467 - Trenchless methods for forming curved hole channel with steel sleeve and pipeline lifting
8. 11473713 - Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and subsidence
9. 11346487 - Support tool and back-pressure grouting device for leakage repair of inspection well and repair method thereof
10. 11333647 - Apparatus for assessing hot coal fallout propensity of burning cigarette based on human behavior features of ash-flicking action and method thereof
11. 11231139 - Detecting and repairing method for external diseases of buried drainage pipeline
12. 11079057 - Trenchless rehabilitation device for disconnects on large-diameter concrete drainage pipe and method thereof
13. 11002398 - Trenchless rehabilitation system for deformation of large diameter HDPE pipelines and method thereof
14. 10907761 - In-service and trenchless repair method for disconnection of drainage pipeline