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Inventor

John D. Henderson

Inventor
Bishops Stortford, GB

Overview

5→
Patents
1994–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 5 as inventor

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

E21Bprimary
E21BEarth or rock drilling50%
E02DFoundations38%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing13%
PatentTitleYear
10,577,768Systems and methods for tethering subsea structure mounted on a wellhead202010,233,606Systems and methods for tethering subsea structure mounted on a wellhead20199,879,396'Systems and methods for tethering subsea structure mounted on a wellhead'20189,359,852'Systems and methods for tethering subsea blowout preventers to enhance the strength and fatigue resistance of subsea wellheads and primary conductors'20165,320,344'Tennis net with singles sticks'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to HENDERSON JOHN D (1)· patent assignee history
1994Based in Dove Canyon, CA, US· patent location history
2016–2020Patents assigned to TRENDSETTER VULCAN OFFSHORE INC (4)· patent assignee history
2016Patents assigned to BP CORP NORTH AMERICA INC (1)· patent assignee history
2016–2020Based in Bishops Stortford, GB· patent location history
2018Based in Herts, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TRENDSETTER VULCAN OFFSHORE INC42016–2020
BP CORP NORTH AMERICA INC12016
HENDERSON JOHN Dself11994
Locations
LocationPatentsSpan
Bishops Stortford, GB32016–2020
Herts, GB12018
Dove Canyon, California, US11994