Inventor

Russell C. Gilleylen

Inventor

Spring, TX, US

Overview

13→

Patents

1994–2021

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 13 as inventor

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

E21Bprimary

E21BEarth or rock drilling37%

B22FWorking metallic powder9%

B24DTools for grinding, buffing or sharpening9%

C22CAlloys9%

C23CCoating metallic material9%

Y10TTechnical subjects covered by former us classification9%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

B22DCasting of metals3%

B23KSoldering or unsoldering3%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering3%

PatentTitleYear

10,906,104Systems and methods of fabrication and use of wear-resistant materials2021 10,815,772Detection system for a wellsite and method of using same2020 10,787,737Downhole drill bit with coated cutting element2020 10,570,667Polycrystalline diamond cutting element2020 10,214,812Cutter elements for drill bits and methods for fabricating same2019 9,981,362Apparatus and methods for high pressure leaching of polycrystalline diamond cutter elements2018 9,598,923'Downhole pulse generating device for through-bore operations'2017 9,269,199'Method and system for monitoring downhole assets'2016 8,919,463'Polycrystalline diamond cutting element'2014 7,464,765'Inner guide seal assembly and method for a ram type BOP system'2008 7,243,713'Shear/seal ram assembly for a ram-type blowout prevention system'2007 5,662,312'Pressurized sheave mechanism for high pressure wireline service'1997 5,287,879'Hydraulically energized wireline blowout preventer'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to EASTERN OIL TOOLS PTE LTD (1)· patent assignee history

1994–1997Based in Longview, TX, US· patent location history

2007–2021Patents assigned to NAT OILWELL DHT LP (7)· patent assignee history

2007–2008Based in Houston, TX, US· patent location history

2014Patents assigned to FRANCIS MARK JONATHAN (1)· patent assignee history

2014Patents assigned to GILLEYLEN RUSSELL C (1)· patent assignee history

2014–2021Based in Spring, TX, US· patent location history

2016–2020Patents assigned to NAT OILWELL VARCO LP (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NAT OILWELL DHT LP	7	2007–2021
NAT OILWELL VARCO LP	4	2016–2020
EASTERN OIL TOOLS PTE LTD	1	1994
FRANCIS MARK JONATHAN	1	2014
GILLEYLEN RUSSELL Cself	1	2014

Locations

Location	Patents	Span
Spring, Texas, US	9	2014–2021
Houston, Texas, US	2	2007–2008
Longview, Texas, US	2	1994–1997