Inventor

John D. McGugan

Inventor
Aberdeen, GB

Overview

7→
Patents
1976–1990
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

F16Lprimary
F16LPipes22%
E21BEarth or rock drilling17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification13%
E02DFoundations9%
B23PMetal-working not otherwise provided for4%
E02BHydraulic engineering4%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
F23DBurners4%
F23GCremation furnaces4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to NORALCO OVERSEAS INC (1)· patent assignee history
1976Based in Gorleston, GB· patent location history
1981–1985Patents assigned to HUNTING OILFIELD SERVICES (2)· patent assignee history
1981Based in Banchory, GB· patent location history
1984–1990Patents assigned to HUNTING OILFIELD SERVICES LTD (4)· patent assignee history
1984–1990Based in Aberdeen, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUNTING OILFIELD SERVICES LTD41984–1990
HUNTING OILFIELD SERVICES21981–1985
NORALCO OVERSEAS INC11976
Locations
LocationPatentsSpan
Aberdeen, GB51984–1990
Banchory, GB11981
Gorleston, GB11976