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Inventor

Lewis Callaway

Inventor
Sugar Land, TX, US

Overview

4→
Patents
2016–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

E21Bprimary
E21BEarth or rock drilling31%
F25BRefrigeration machines, plants or systems15%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact15%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application15%
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
F04BPositive-displacement machines for liquids8%
G01NInvestigating or analysing materials by determining their chemical or physical properties8%
PatentTitleYear
10,544,343Viscometer and methods of use thereof202010,519,758Oilfield surface equipment cooling system201910,393,108Reducing fluid pressure spikes in a pumping system20199,435,175'Oilfield surface equipment cooling system'2016

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2016–2020Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (4)· patent assignee history
2016–2020Based in Sugar Land, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP42016–2020
Locations
LocationPatentsSpan
Sugar Land, Texas, US42016–2020