Inventor

Robert D. Butterfield

Inventor

Poway, CA, US

Overview

1987–2020

Patent span

Human necessities

Primary field (CPC A)

Patents· 86 as inventor

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

A61Mprimary

A61MDevices for introducing media into, or onto, the body38%

A61BDiagnosis14%

G16HHealthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data11%

F04BPositive-displacement machines for liquids7%

G06FElectric digital data processing5%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Y02ATechnologies for adaptation to climate change3%

Y10TTechnical subjects covered by former us classification2%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure2%

PatentTitleYear

10,837,436System and method for improved flow uniformity in a peristaltic pump mechanism2020 10,792,420Occlusion detection for infusion pumps2020 10,632,299Systems and methods for intermittent infusion2020 10,632,298Fluid infusion systems and methods2020 10,563,647Low-force pumping segment2020 10,485,926Systems and methods for controlling an infusion pump2019 10,384,000Drip chamber2019 10,342,921Integrated infusion pump and container2019 10,328,199Model-based infusion site monitor2019 10,226,571Pump segment placement2019 10,188,792Automated pressure limit setting method and apparatus2019 10,064,579System and method for dynamically adjusting patient therapy2018 10,039,879Infusion system with dual-chambered reservoir2018 9,683,562'Low-force pumping segment'2017 9,561,322'Integrated infusion pump and container'2017 9,545,508'Drip chamber'2017 9,514,279'Model-based infusion site monitor'2016 9,498,574'Infusion system with dual-chambered reservoir'2016 9,468,714'Memory and identification associated with IV set'2016 9,307,907'System and method for dynamically adjusting patient therapy'2016 9,302,091'Check valve system'2016 9,227,025'Infusion data communication system'2016 9,205,187'Managing a fluid flow'2015 9,163,623'System and method for improved flow uniformity in a peristaltic pump mechanism'2015 9,162,023'Automated pressure limit setting method and apparatus'2015 9,039,656'Medication safety enhancement for secondary infusion'2015 8,777,894'Infusion data communication system'2014 8,777,897'Fluid delivery systems and methods having wireless communication'2014 8,771,228'IV pump adapted for generic tubing'2014 8,761,906'System and method for dynamically adjusting patient therapy'2014 8,672,875'Medication safety enhancement for secondary infusion'2014 8,630,722'System and method for dynamically adjusting patient therapy'2014 8,585,649'Tubular pumping element'2013 8,545,446'Fluid mechanical device for improved secondary mode IV delivery'2013 8,359,338'System and method for managing medical databases for patient care devices'2013 8,340,792'System and method for dynamically adjusting patient therapy'2012 8,323,007'Fluid pump with disposable component'2012 8,281,041'System and method for preventing keypad entry errors'2012 8,096,186'Systems and methods for measuring fluid pressure within a disposable IV set connected to a fluid supply pump'2012 8,087,906'Fluid pump with disposable component'2012 8,082,112'Apparatus and method for air-in-line detection'2011 8,075,514'Infusion data communication system'2011 7,893,876'System and method for determining locations of medical devices'2011 7,871,394'System and method for optimizing control of PCA and PCEA system'2011 7,860,583'System and method for dynamically adjusting patient therapy'2010 7,561,986'Empty container detection using container side pressure sensing'2009 7,318,004'Temperature prediction system and method'2008 7,255,683'System for detecting the status of a vent associated with a fluid supply upstream of an infusion pump'2007 7,206,715'Empty container detection using container side pressure sensing'2007 7,141,037'Apparatus and method for air-in-line detection'2006 6,874,584'Disc furrow opener scraper positioning system'2005 6,616,633'Apparatus and method for air-in-line detection'2003 6,554,806'Burette safety valve'2003 6,416,291'Fluid flow resistance monitoring system'2002 6,394,771'System and method for increased flow uniformity'2002 6,358,225'Upstream occlusion detection system'2002 6,290,650'Tonometry system for monitoring blood pressure'2001 6,237,697'Quick release and storage system based on an eccentric rotating element'2001 6,213,972'Fluid flow resistance monitoring system'2001 D0438532'Communication interface cover'2001 6,193,480'System and method for increased flow uniformity'2001 6,158,965'Fluid flow resistance monitoring system'2000 5,908,027'Tonometry system for monitoring blood pressure'1999 5,827,223'Upstream occulsion detection system'1998 5,803,917'Fluid flow resistance monitoring system'1998 5,716,194'System for increasing flow uniformity'1998 5,617,867'Tonometer mounting device'1997 5,609,576'Fluid flow impedance monitoring system'1997 5,605,156'Flexible diaphragm tonometer'1997 5,603,613'Fluid delivery system having an air bubble ejector'1997 5,563,347'Pressure sensing vessel adapted to be preloaded against a sensor'1996 5,439,001'Flexible diaphragm tonometer'1995 5,423,743'Cannula position detection'1995 5,363,855'Pressure waveform monitor'1994 5,284,150'Tonometry system for determining blood pressure'1994 5,273,046'Method of determining optimum artery applanation'1993 5,271,405'Wrist mount apparatus for use in blood pressure tonometry'1993 5,263,484'Method of determining which portion of a stress sensor is best positioned for use in determining intra-arterial blood pressure'1993 5,261,412'Method of continuously monitoring blood pressure'1993 5,240,007'Apparatus and method for moving a tissue stress sensor for applanating an artery'1993 5,195,522'Tonometry sensor calibration apparatus'1993 5,158,091'Tonometry system for determining blood pressure'1992 5,154,680'Pressure waveform monitor'1992 5,096,385'Method and system for upstream occlusion detection'1992 4,743,228'Fluid flow monitoring method and system'1988 4,710,163'Detection of fluid flow faults in the parenteral administration of fluids'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1998Patents assigned to IVAC CORP (17)· patent assignee history

1987–2019Based in San Diego, CA, US· patent location history

1992–2020Based in Poway, CA, US· patent location history

1993–2017Patents assigned to BUTTERFIELD ROBERT D (15)· patent assignee history

1998–2003Patents assigned to ALARIS MEDICAL SYST INC (12)· patent assignee history

2001–2005Based in St. Brieux, CA· patent location history

2001Based in Pittsfield, MA, US· patent location history

2010–2020Patents assigned to CAREFUSION 303 INC (44)· patent assignee history

2013–2017Patents assigned to BUTTERFIELD ROBERT DWAINE (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CAREFUSION 303 INC	44	2010–2020
IVAC CORP	17	1987–1998
BUTTERFIELD ROBERT Dself	15	1993–2017
ALARIS MEDICAL SYST INC	12	1998–2003
BUTTERFIELD ROBERT DWAINEself	6	2013–2017

Locations

Location	Patents	Span
Poway, California, US	75	1992–2020
San Diego, California, US	8	1987–2019
St. Brieux, CA	2	2001–2005
Pittsfield, Massachusetts, US	1	2001