Inventor
LULU SONG
Inventor
US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere54%
E21BEarth or rock drilling31%
LOC1215%
PatentTitleYear
D1109654Golf buggy front cover202612,391,868Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive2025D1086936Golf buggy front cover202512,312,536Low concentration synthetic polymer fracturing fluid with ascorbic acid202512,241,022Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive202512,098,327Degradable friction reducer for hydraulic fracturing treatments202412,098,326Degradable friction reducer for hydraulic fracturing treatments202411,999,905Degradable friction reducer for hydraulic fracturing treatments202411,459,502Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to BEIJING HUAMEI INC (7)· patent assignee history
2022–2025Patents assigned to CNPC USA CORP (7)· patent assignee history
2022–2025Based in US· patent location history
2024–2025Patents assigned to CHINA NAT PETROLEUM CORP (6)· patent assignee history
2025–2026Patents assigned to ANHUI HUAXIN ELECTRIC TECH CO LTD (2)· patent assignee history
2025–2026Based in CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BEIJING HUAMEI INC | 7 | 2022–2025 |
| CNPC USA CORP | 7 | 2022–2025 |
| CHINA NAT PETROLEUM CORP | 6 | 2024–2025 |
| ANHUI HUAXIN ELECTRIC TECH CO LTD | 2 | 2025–2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 7 | 2022–2025 |
| CN | 2 | 2025–2026 |