Inventor
Leonard N. Liebermann
Inventor
La Jolla, CA, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties32%
G01RMeasuring electric variables16%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof5%
F25BRefrigeration machines, plants or systems5%
G01FMeasuring volume, volume flow, mass flow or liquid level5%
G01GWeighing5%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves5%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure5%
G01MTesting static or dynamic balance of machines or structures5%
G01VGeophysics5%
PatentTitleYear
6,768,309'Electronic battery condition tester'20045,498,873'Refrigerant impurity analyzer'19965,400,015'Filter circuit for a gaseous leak detector'19955,321,209'Electronic weighing device'19945,136,885'Quartz crystal pressure sensor'19924,788,858'Fuel injector testing device and method'19884,719,428'Storage battery condition tester utilizing low load current'1988RE032552'Gaseous impurity detector employing corona discharge phenomenon'19874,392,374'Transducer coupling apparatus for inhomogeneity detector'19834,235,095'Device for detecting inhomogeneities such as gas bubbles'19804,213,089'Variable scale readout for multi-meter use'19804,138,879'Sightless bubble detector'19794,041,446'Capacitive-type displacement and pressure sensitive transducer'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to US NAVY (1)· patent assignee history
1977–2004Based in La Jolla, CA, US· patent location history
1979–1996Patents assigned to TIF INSTR INC (11)· patent assignee history
1994Based in LaJolla, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TIF INSTR INC | 11 | 1979–1996 |
| US NAVY | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| La Jolla, California, US | 12 | 1977–2004 |
| LaJolla, California, US | 1 | 1994 |