LexDanaLexDanabeta
Inventor

James BARNHOUSE

Inventor
US

Overview

2→
Patents
2023–2024
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F04Bprimary
F04BPositive-displacement machines for liquids50%
E21BEarth or rock drilling25%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants25%
PatentTitleYear
12,158,142System and method for maintaining pumps202411,674,509Long sleeve cartridge for a fluid end block2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023–2024Patents assigned to SPM OIL & GAS INC (2)· patent assignee history
2023–2024Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SPM OIL & GAS INC22023–2024
Locations
LocationPatentsSpan
US22023–2024