Inventor

Weldon M. Harms

Inventor
Duncan, OK, US

Overview

12→
Patents
1984–1997
Patent span
Chemistry
Primary field (CPC C)

Patents· 12 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere42%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests29%
E21BEarth or rock drilling13%
B01FMixing, e.g. dissolving, emulsifying or dispersing4%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%
C08JWorking-up4%
F02BInternal-combustion piston engines4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1994Patents assigned to HALLIBURTON CO (10)· patent assignee history
1984–1997Based in Duncan, OK, US· patent location history
1992Patents assigned to HALLIBURTON SERVICES (1)· patent assignee history
1997Patents assigned to HALLIBURTON ENERGY SERV INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON CO101984–1994
HALLIBURTON ENERGY SERV INC11997
HALLIBURTON SERVICES11992
Locations
LocationPatentsSpan
Duncan, OK, US121984–1997