Inventor
Fife B. Ellis
Inventor
Houston, TX, US
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling36%
B63BShips or other waterborne vessels9%
Y10TTechnical subjects covered by former us classification9%
F15BSystems acting by means of fluids in general6%
F16LPipes6%
B05BSpraying apparatus4%
B29CShaping or joining of plastics4%
B08BCleaning in general2%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding2%
B25FCombination or multi-purpose tools not otherwise provided for2%
PatentTitleYear
9,926,751'Enhanced ram-style riser tensioner'20189,784,064'Methods and systems for operating a downhole tool'20179,784,052'Enhanced ram-style riser tensioner cylinder'20179,682,752'Deflection absorbing tensioner frame'20179,540,890'Methods and systems for tensioner connection'20179,470,049'Hydro-pneumatic tensioner with fluid retention device'20169,181,761'Riser tensioning system'20158,540,460'System for supplemental tensioning for enhanced platform design and related methods'20138,440,034'System, method, and apparatus for pre-tensioned pipe for load-sharing with composite cover'20138,333,243'Tensioner anti-rotation device'20128,286,714'Riser tensioner with shrouded rods'20128,245,786'System, method and apparatus for sleeved tensioner rod with annular adhesive retention'20128,141,644'System, method, and apparatus for a corrosion-resistant sleeve for riser tensioner cylinder rod'20128,101,050'System, method, and apparatus for continuous electroplating of elongated workpieces'20127,896,998'System, method, and apparatus for pre-tensioned pipe for load-sharing with composite cover'20117,823,646'Riser tensioner with lubricant reservoir'20107,819,195'External high pressure fluid reservoir for riser tensioner cylinder assembly'20107,708,498'Soft stop for maximum riser tensioner stroke'20107,686,085'System, method, and apparatus for sleeved tensioner rod with annular adhesive retention'20107,067,201'Wear resistant coating for keel joint'20066,902,005'Tubing annulus communication for vertical flow subsea well'20056,241,500'Double-throw air motor with reverse feature'20015,685,487'Compact high pressure forward jetting spinning nozzle for cleaning'19975,456,413'Rotating nozzle with pressure responsive clearance'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2018Based in Houston, TX, US· patent location history
2005–2013Patents assigned to VETCO GRAY INC (14)· patent assignee history
2012–2013Patents assigned to ELLIS FIFE B (7)· patent assignee history
2012Patents assigned to JENNINGS CHARLES E (2)· patent assignee history
2015–2018Patents assigned to DRIL QUIP INC (2)· patent assignee history
2016–2017Patents assigned to DRIL-QUIP INC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VETCO GRAY INC | 14 | 2005–2013 |
| ELLIS FIFE Bself | 7 | 2012–2013 |
| DRIL-QUIP INC | 5 | 2016–2017 |
| DRIL QUIP INC | 2 | 2015–2018 |
| JENNINGS CHARLES E | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 24 | 1995–2018 |