Inventor

LOGAN DEREK

CA12 patents

⚠️ This page may combine multiple inventors who share the name “LOGAN DEREK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LOGAN DEREK

3 patents

US8434897B2May 7, 2013

LED-based lighting fixtures for surface illumination with improved heat dissipation and manufacturability

LOGAN DEREK21 citations91

US8408741B2Apr 2, 2013

LED-based lighting fixtures for surface illumination with improved heat dissipation and manufacturability

LOGAN DEREK4 citations61

US9109403B2Aug 18, 2015

Drill bit assembly having electrically isolated gap joint for electromagnetic telemetry

LOGAN DEREK3 citations57

PHILIPS SOLID STATE LIGHTING

2 patents

US7358929B2Apr 15, 2008

Tile lighting methods and systems

PHILIPS SOLID STATE LIGHTING334 citations98

US7961113B2Jun 14, 2011

Networkable LED-based lighting fixtures and methods for powering and controlling same

PHILIPS SOLID STATE LIGHTING112 citations94

HIFI ENG INC

2 patents

US10422365B2Sep 24, 2019

Clamp and a method of clamping

HIFI ENG INC18 citations85

US10746208B2Aug 18, 2020

Method and system for non-intrusive pipeline testing

HIFI ENG INC3 citations72

KONINKL PHILIPS ELECTRONICS NV

1 patent

US7878683B2Feb 1, 2011

LED-based lighting fixtures for surface illumination with improved heat dissipation and manufacturability

KONINKL PHILIPS ELECTRONICS NV182 citations98

SCHLUMBERGER TECHNOLOGY CORP

1 patent

US7839719B2Nov 23, 2010

Fluid erosion protection washer for rotating shaft in MWD tool

SCHLUMBERGER TECHNOLOGY CORP29 citations87

FISKARS BRANDS INC

1 patent

USD532602SNov 28, 2006

Tool taxi

FISKARS BRANDS INC3 citations60

EXTREME ENGINEERING LTD

1 patent

US7532540B2May 12, 2009

Fluid erosion protection washer for rotating shaft in MWD tool

EXTREME ENGINEERING LTD0 citations46

HAUGVALDSTAD KJELL

1 patent

US9004196B2Apr 14, 2015

Drill bit assembly having aligned features

HAUGVALDSTAD KJELL0 citations33