Inventor

Douglas M. Johnston

Inventor

Winchester, MA, US

Overview

16→

Patents

1995–2016

Patent span

Physics

Primary field (CPC G)

Patents· 16 as inventor

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

A61Bprimary

A61BDiagnosis19%

G01BMeasuring length, thickness or similar linear dimensions19%

G01NInvestigating or analysing materials by determining their chemical or physical properties19%

G16HHealthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data13%

G06FElectric digital data processing11%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%

A61MDevices for introducing media into, or onto, the body6%

G16ZInformation and communication technology [ict] specially adapted for specific application fields, not otherwise provided for2%

PatentTitleYear

9,448,061'Selecting an earpiece based on dynamic data'2016 9,291,565'Three dimensional scanning using membrane with optical features'2016 9,175,945'Evaluating fit of an earpiece based on dynamic data'2015 9,170,200'Inflatable membrane with hazard mitigation'2015 9,170,199'Enhanced sensors in three dimensional scanning system'2015 9,140,649'Inflatable membrane having non-uniform inflation characteristic'2015 9,013,701'Positioning an input transducer for an earpiece based upon dynamic data'2015 8,874,404'Simulating earpiece fit based upon dynamic data'2014 8,845,526'Integrated otoscope and three dimensional scanning system'2014 8,743,377'Using dynamic data to determine a material profile for earpiece'2014 8,493,574'Imaging shape changes in ear canals'2013 8,384,916'Dynamic three-dimensional imaging of ear canals'2013 6,158,432'Ventilator control system and method'2000 5,931,160'Ventilator control system and method'1999 5,664,563'Pneumatic system'1997 5,377,671'Cardiac synchronous ventilation'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2016Based in Winchester, MA, US· patent location history

2013–2016Patents assigned to MASSACHUSETTS INST TECHNOLOGY (12)· patent assignee history

2013–2016Patents assigned to FRIGERIO FEDERICO (6)· patent assignee history

2013–2016Patents assigned to HART DOUGLAS P (6)· patent assignee history

2013–2016Patents assigned to JOHNSTON DOUGLAS M (6)· patent assignee history

2013–2016Patents assigned to MENON MANAS C (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MASSACHUSETTS INST TECHNOLOGY	12	2013–2016
FRIGERIO FEDERICO	6	2013–2016
HART DOUGLAS P	6	2013–2016
JOHNSTON DOUGLAS Mself	6	2013–2016
MENON MANAS C	6	2013–2016

Locations

Location	Patents	Span
Winchester, Massachusetts, US	16	1995–2016