LexDanaLexDanabeta
Inventor

Lingchao XUAN

Inventor
CN

Overview

5→
Patents
2024–2025
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary
E21BEarth or rock drilling71%
G06FElectric digital data processing14%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution14%
PatentTitleYear
12,480,365State self-adaptive turbine type pulse generator and downhole drilling tool202512,031,410Well drilling tool and method for determining parameter thereof202411,946,342Drilling tool202411,920,437Well drilling acceleration tool202411,898,417Drilling speed increasing device2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024–2025Patents assigned to CHINA PETROLEUM & CHEM CORP (5)· patent assignee history
2024–2025Patents assigned to SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (5)· patent assignee history
2024–2025Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA PETROLEUM & CHEM CORP52024–2025
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD52024–2025
Locations
LocationPatentsSpan
CN52024–2025