LexDanaLexDanabeta
Inventor

LEV RING

Inventor
US

Overview

3→
Patents
2021–2025
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 3 as inventor

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

E21Bprimary
E21BEarth or rock drilling75%
C09KMaterials for miscellaneous applications, not provided for elsewhere25%
PatentTitleYear
12,227,698Method of multi-stage fracturing of subterranean formation and slurry for that method202511,193,338Pressure control device for use with a subterranean well202111,193,340Heave compensation system for assembling a drill string2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to WEATHERFORD TECH HOLDINGS LLC (2)· patent assignee history
2021–2025Based in US· patent location history
2025Patents assigned to UNIV KENTUCKY RES FOUND (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WEATHERFORD TECH HOLDINGS LLC22021
UNIV KENTUCKY RES FOUND12025
Locations
LocationPatentsSpan
US32021–2025