Inventor

John F. Volkmar

Inventor
Boulder, CO, US

Overview

1→
Patents
2019
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

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

B23Kprimary
B23KSoldering or unsoldering20%
E01CConstruction of, or surfaces for, roads, sports grounds, or the like20%
E21BEarth or rock drilling20%
E21CMining or quarrying20%
E21DShafts20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to DE WITT RONALD A (1)· patent assignee history
2019Patents assigned to FAIRCLOTH BRIAN O (1)· patent assignee history
2019Patents assigned to FORO ENERGY INC (1)· patent assignee history
2019Patents assigned to GRUBB DARYL L (1)· patent assignee history
2019Patents assigned to KOLACHALAM SHARARTH (1)· patent assignee history
2019Based in Boulder, CO, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DE WITT RONALD A12019
FAIRCLOTH BRIAN O12019
FORO ENERGY INC12019
GRUBB DARYL L12019
KOLACHALAM SHARARTH12019
Locations
LocationPatentsSpan
Boulder, CO, US12019