LexDanaLexDanabeta
Inventor

Ronald C. Gilbert

Inventor
Madisonville, LA, US

Overview

3→
Patents
1989–2011
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B60Vprimary
B60VAir-cushion vehicles67%
E21BEarth or rock drilling33%
PatentTitleYear
8,074,722'Method for securing a damaged wellhead'20114,905,781'Water skate'19904,821,829'Air cushion vehicle'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to H S I PRODUCTS INC (2)· patent assignee history
1989Based in Southampton, GB· patent location history
1990Based in Cowes, GB· patent location history
2011Patents assigned to ALVARADO SIGIFREDO (1)· patent assignee history
2011Patents assigned to GILBERT RONALD C (1)· patent assignee history
2011Patents assigned to MURPHY JR JOHN M (1)· patent assignee history
2011Patents assigned to VETCO GRAY INC (1)· patent assignee history
2011Based in Madisonville, LA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
H S I PRODUCTS INC21989–1990
ALVARADO SIGIFREDO12011
GILBERT RONALD Cself12011
MURPHY JR JOHN M12011
VETCO GRAY INC12011
Locations
LocationPatentsSpan
Madisonville, LA, US12011
Cowes, GB11990
Southampton, GB11989