Inventor
Philip T. Dempster
Inventor
Concord, CA, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%
A61BDiagnosis16%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
G16HHealthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data9%
G01RMeasuring electric variables7%
C01BNon-metallic elements5%
G01FMeasuring volume, volume flow, mass flow or liquid level5%
A61LMethods or apparatus for sterilising materials or objects in general2%
C02FTreatment of water, waste water, sewage, or sludge2%
PatentTitleYear
10,968,101Ozone cell power supply apparatus and method202110,501,320Ozone generation system20198,049,488'Electrical power metering device and method of operation thereof'20117,622,911'Electrical power metering device and method of operation thereof'20097,022,087'Air circulation apparatus and methods for plethysmographic measurement chambers'20066,910,373'Apparatus and methods for repeatable door closure in a plethysmographic measurement chamber'20056,778,926'Calibration methods and apparatus for plethysmographic measurement chambers'20046,702,764'Apparatus and methods for plethysmographic measurement of infant body composition'20046,520,001'Apparatus and method for the determination of the relative proportions of gases'20036,202,468'Apparatus and method for the determination of the relative proportions of gases'20015,437,587'Linear tracking isokinetic exerciser and method'19955,348,519'Exercise and diagnostic apparatus and method'19945,330,397'Linear tracking isokinetic exerciser'19945,244,441'Position-based motion controller'19935,186,695'Apparatus for controlled exercise and diagnosis of human performance'19935,105,825'Method and apparatus for volume measurement and body composition estimation'19925,078,152'Method for diagnosis and/or training of proprioceptor feedback capabilities in a muscle and joint system of a human patient'19924,905,676'Exercise diagnostic system and method'19904,601,468'Exercise and diagnostic system and method'19864,432,226'Method and apparatus for measuring gaseous oxygen'19844,271,701'Gas flow measuring system'19814,155,246'Rapid gas analyzing system'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1995Based in St. Helena, CA, US· patent location history
1986–1994Patents assigned to LOREDAN BIOMED INC (7)· patent assignee history
1990–1992Based in Davis, CA, US· patent location history
1992–2001Patents assigned to LIFE MEASUREMENT INSTR (2)· patent assignee history
2001–2021Based in Concord, CA, US· patent location history
2003–2006Patents assigned to LIFE MEASUREMENT INC (5)· patent assignee history
2009–2011Patents assigned to INTELLIMETER CANADA INC (2)· patent assignee history
2019–2021Patents assigned to PACIFIC OZONE TECH INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LOREDAN BIOMED INC | 7 | 1986–1994 |
| LIFE MEASUREMENT INC | 5 | 2003–2006 |
| INTELLIMETER CANADA INC | 2 | 2009–2011 |
| LIFE MEASUREMENT INSTR | 2 | 1992–2001 |
| PACIFIC OZONE TECH INC | 2 | 2019–2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Concord, California, US | 10 | 2001–2021 |
| St. Helena, California, US | 10 | 1979–1995 |
| Davis, California, US | 2 | 1990–1992 |