LexDanaLexDanabeta
Inventor

Charles N. McDowell

Inventor
New Caney, TX, US

Overview

3→
Patents
2020–2021
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 drilling67%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing33%
PatentTitleYear
10,895,130Remotely operated isolation valve202110,890,048Signal operated isolation valve202110,625,130Flip toy assembly with launcher device and projectile2020

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to MCDOWELL CHARLES N (1)· patent assignee history
2020Based in Newtown Square, PA, US· patent location history
2021Patents assigned to WEATHERFORD TECH HOLDINGS LLC (2)· patent assignee history
2021Based in New Caney, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WEATHERFORD TECH HOLDINGS LLC22021
MCDOWELL CHARLES Nself12020
Locations
LocationPatentsSpan
New Caney, Texas, US22021
Newtown Square, Pennsylvania, US12020