Inventor

David A. Switzer

Inventor

Calgary, CA

Overview

2004–2021

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 98 as inventor

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

E21Bprimary

E21BEarth or rock drilling47%

G06FElectric digital data processing12%

H04BTransmission7%

H04LTransmission of digital information, e.g. telegraphic communication6%

H04WWireless communication networks5%

H04QSelecting4%

G01VGeophysics2%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use2%

A61BDiagnosis2%

F16LPipes2%

PatentTitleYear

11,073,015Integrated downhole system with plural telemetry subsystems2021 10,954,781Multi-mode control of downhole tools2021 10,901,108Method and apparatus for placing receiver electrodes for EM telemetry transmissions2021 10,753,201Mud pulse telemetry apparatus with a pressure transducer and method of operating same2020 10,731,459Integrated downhole system with plural telemetry subsystems2020 10,729,029Mounting and component holder apparatuses and assemblies for holding rigid components2020 10,598,000Methods and apparatus for downhole probes2020 10,570,726Detection of downhole data telemetry signals2020 10,563,503Transmitting data across electrically insulating gaps in a drill string2020 10,531,277Wireless initialization of electronic devices for first time use2020 10,513,892Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling2019 10,494,879Universal downhole probe system2019 10,443,374Electromagnetic communications system and method for a drilling operation2019 10,400,520Electromagnetic telemetry gap sub assembly with insulating collar2019 10,352,111Drill collar with integrated probe centralizer2019 10,329,901Surface display interface for data from downhole systems2019 10,287,871Axially-supported downhole probes2019 10,280,741Optimizing downhole data communication with at bit sensors and nodes2019 10,253,621Integrated downhole system with plural telemetry subsystems2019 10,233,747Optimizing electromagnetic telemetry transmissions2019 10,214,971Apparatus for angular alignment of downhole sensors with high side in directional drilling2019 10,215,021Downhole electromagnetic and mud pulse telemetry apparatus2019 10,202,844Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location2019 10,196,892Detection of downhole data telemetry signals2019 10,151,196Downhole telemetry2018 10,119,393Optimizing downhole data communication with at bit sensors and nodes2018 10,113,412Axially-supported downhole probes2018 10,066,481Downhole electromagnetic and mud pulse telemetry apparatus2018 10,066,475Back up directional and inclination sensors and method of operating same2018 10,006,280Downhole pocket electronics2018 9,995,134Electromagnetic pulse downhole telemetry2018 9,988,896Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location2018 9,988,855Methods and apparatus for generating electromagnetic telemetry signals2018 9,988,897Optimizing electromagnetic telemetry transmissions2018 9,976,414Downhole probe assembly with bluetooth device2018 9,951,603Methods and apparatus for downhole probes2018 9,951,611Downhole telemetry2018 9,955,343Wireless initialization of electronic devices for first time use2018 9,932,776Pinned electromagnetic telemetry gap sub assembly2018 9,920,622'Transmitting data across electrically insulating gaps in a drill string'2018 9,915,146'Fluid pressure pulse generating apparatus with primary seal assembly, back up seal assembly and pressure compensation device and method of operating same'2018 9,909,369'Electromagnetic telemetry gap sub assembly with insulating collar'2018 9,903,198'Downhole electromagnetic and mud pulse telemetry apparatus'2018 9,874,083Downhole probes and systems2018 9,874,092Fluid pressure pulse generator for a downhole telemetry tool2018 9,850,751Axially-supported downhole probes2017 9,850,722Universal downhole probe system2017 9,840,879'Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling'2017 9,828,854Mud pulse telemetry apparatus with a pressure transducer and method of operating same2017 9,828,852Fluid pressure pulse generator and method of using same2017 9,771,792'Method and apparatus for multi-channel downhole electromagnetic telemetry'2017 9,765,615'Optimizing electromagnetic telemetry transmissions'2017 9,752,429'Downhole electromagnetic and mud pulse telemetry apparatus'2017 9,732,608'Downhole telemetry'2017 9,719,345'Electromagnetic communications system and method for a drilling operation'2017 9,714,569'Mud pulse telemetry apparatus with a pressure transducer and method of operating same'2017 9,708,903'Back up directional and inclination sensors and method of operating same'2017 9,670,771'Methods and apparatus for generating electromagnetic telemetry signals'2017 9,664,038'Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location'2017 9,664,037'Detection of downhole data telemetry signals'2017 9,644,471'Mounting and component holder apparatuses and assemblies for holding rigid components'2017 9,617,849'Fluid pressure pulse generator with low and high flow modes for wellbore telemetry and method of using same'2017 9,612,845'Wireless initialization of electronic devices for first time use'2017 9,605,535'Integrated downhole system with plural telemetry subsystems'2017 9,587,441'Apparatus and method for coaxially joining components to resist relative rotational and longitudinal movement'2017 9,582,290'Wireless initialization of electronic devices for first time use'2017 9,574,441'Downhole telemetry signal modulation using pressure pulses of multiple pulse heights'2017 9,567,835'System and method for managing batteries for use in a downhole drilling application'2017 9,528,370'Fluid pressure pulse generating apparatus with primary seal assembly, back up seal assembly and pressure compensation device and method of operating same'2016 9,528,371'Fluid pressure pulse generating apparatus and method of using same'2016 9,512,716'System and method for regulating an electromagnetic telemetry signal sent from downhole to surface'2016 9,494,035'Fluid pressure pulse generator and method of using same'2016 9,476,297'Telemetry systems with compensation for signal degradation and related methods'2016 9,476,296'Fluid pressure pulse generating apparatus with primary seal assembly, back up seal assembly and pressure compensation device and method of operating same'2016 9,464,519'Method and apparatus for detecting gamma radiation downhole'2016 9,435,196'Downhole electromagnetic and mud pulse telemetry apparatus'2016 9,422,809'Fluid pressure pulse generator and method of using same'2016 9,291,049'Downhole electromagnetic and mud pulse telemetry apparatus'2016 9,128,919'Smart space insertion'2015 8,634,274'Spindle for mud pulse telemetry applications'2014 8,381,133'Enhanced on-object context menus'2013 8,174,929'Spindle for mud pulse telemetry applications'2012 7,945,855'Smart space insertion'2011 7,895,590'Update at shutdown'2011 7,810,042'Page bar control'2010 7,797,639'Page bar control'2010 7,788,474'Operating system shut down'2010 7,756,980'Using channel concepts to control computer networking'2010 7,581,194'Enhanced on-object context menus'2009 7,454,699'Smart content insertion'2008 7,433,324'User experience for collaborative ad-hoc networks'2008 7,418,137'System and method for accepting disparate types of user input'2008 7,389,434'Keep awake heuristic'2008 7,100,119'Page bar control'2006 7,058,902'Enhanced on-object context menus'2006 6,902,414'Harsh environment rotatable connector'2005 6,791,536'Simulating gestures of a pointing device using a stylus and providing feedback thereto'2004 6,788,815'System and method for accepting disparate types of user input'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2013Patents assigned to MICROSOFT CORP (16)· patent assignee history

2004–2015Based in Redmond, WA, US· patent location history

2005–2021Based in Calgary, CA· patent location history

2008–2018Based in Seattle, WA, US· patent location history

2012–2014Patents assigned to CAMWELL PAUL L (2)· patent assignee history

2012–2014Patents assigned to DOPF ANTHONY R (2)· patent assignee history

2016–2021Patents assigned to EVOLUTION ENGINEERING INC (74)· patent assignee history

2017–2020Patents assigned to NIKE INC (3)· patent assignee history

2020Based in Portland, OR, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EVOLUTION ENGINEERING INC	74	2016–2021
MICROSOFT CORP	16	2004–2013
NIKE INC	3	2017–2020
CAMWELL PAUL L	2	2012–2014
DOPF ANTHONY R	2	2012–2014

Locations

Location	Patents	Span
Calgary, CA	77	2005–2021
Redmond, Washington, US	13	2004–2015
Seattle, Washington, US	7	2008–2018
Portland, OR, US	1	2020