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Inventor

Robert L. Leon

Inventor
Maple Glen, PA, US

Overview

64→
Patents
1983–2020
Patent span
Physics
Primary field (CPC G)

Patents· 64 as inventor

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

F16Kprimary
F16KValves12%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
G01BMeasuring length, thickness or similar linear dimensions7%
A42BHats6%
Y10TTechnical subjects covered by former us classification6%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing5%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves3%
G07CTime or attendance registers3%
PatentTitleYear
10,869,520Helmet202010,869,518Chin strap assembly for a protective helmet202010,708,546Multiposition magnifier camera202010,565,853Container with content monitoring and reporting capabilities202010,130,133Helmet system201810,032,389Video magnifier camera with handle20189,992,453Multiposition magnifier camera20189,894,263'Handheld magnifier camera with variable focus distance'20189,560,892'Helmet system'20179,554,608'Helmet system'20179,468,248'Helmet system'20169,462,840'Helmet system'20169,451,156'Handheld magnifier camera with variable focus distance'20169,119,433'Helmet system'20159,032,558'Helmet system'2015D0728656'Video magnifier camera with handle'2015RE043831'Method and apparatus for making internal connections within a battery pack'20127,546,141'Hybrid communication system and method'20097,178,651'Fast reacting thermal clutch'20076,962,235'Apparatus for exterior evacuation from buildings'20056,680,923'Communication system and method'20046,445,955'Miniature wireless transcutaneous electrical neuro or muscular-stimulation unit'2002D0451496'Belt clip for a pager assembly'20016,289,723'Detecting seal leaks in installed valves'20016,165,639'Method and apparatus for making internal connections within a battery pack'20006,134,949'Method and apparatus for on-line detection of leaky emergency shut down or other valves'20006,128,946'Method and apparatus for on-line detection of leaky emergency shut down or other valves'20006,105,923'Belt clip aperture for use in a two-way radio housing and method of using same'20005,955,679'Device for measuring strain parameters of a generally cylindrical member of virtually any size'19995,896,277'Slidable cover for a battery housing'19995,861,850'Antenna assembly for use with a portable two-way communications device and method of using same'19995,681,515'Method of fabricating an elastomeric keypad'1997D0383433'Battery eliminator housing for a portable radio'19975,651,284'Strain gage method for measuring thrust and torque on valve stems that does not require calibrations against a known thrust and torque'1997D0379345'Battery for a portable communication device'19975,620,242'Portable radio battery latch'19975,523,682'Method for determining position of an internal, movable conductive element'19965,519,300'Method and apparatus for analysis of polyphase electrical motor systems'19965,475,299'Method for remotely determining operability of motor operated valves'19955,471,880'Method and apparatus for isolating and identifying periodic Doppler signals in a turbine'19955,460,906'Portable radio battery latch'19955,457,376'Integrated battery contact and retentive protrusion'19955,452,616'System for determining shaft load parameters including shaft windup angle per unit length, torque output and power output in a generally cylindrical rotating shaft'19955,440,938'System for determining shaft load parameters including shaft windup angle per unit length, torque output and power output in a generally cylindrical rotating shaft'19955,432,436'Method for remotely approximating the stem thurst of motor operated valves'19955,430,368'Method for remotely approximating the stem thrust of motor operated valves'19955,396,167'Method for remotely determining operability of motor operated valves'19955,346,413'Sealing electrical contact'19945,317,247'Integrated battery contact and retentive protrusion'19945,152,172'Operating turbine resonant blade monitor'19925,140,263'System for determining position of an internal, movable conductive element'19925,086,273'A.C. electromagnetic system for determining position of an encased movable electrically conductive element'19925,064,234'Vacuum nozzle and conductance sensor'19915,029,597'Controller for controlling the operation of a motor operated valve combination'19915,020,773'Actuator assembly with permanently mounted monitoring system'19914,996,880'Operating turbine resonant blade monitor'19914,995,257'Monitor for shaft vibration in an operating turbine'19914,911,004'Devices and methods for determining axial loads'19904,898,362'Thrust actuated control for motor operated valve'19904,882,937'Strain sensor for attachment to a structural member'19894,879,901'System for evaluating the condition and performance of a valve and valve operator combination'19894,879,511'Flat, multiconductor cable coil device for in situ detecting of axial motion of a generally cylindrical member'19894,805,451'System for evaluating the condition and performance of a valve and valve operator combination'19894,422,333'Method and apparatus for detecting and identifying excessively vibrating blades of a turbomachine'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1992Based in Roslyn, PA, US· patent location history
1989–1992Patents assigned to LIBERTY TECH CENTER (10)· patent assignee history
1991–2000Patents assigned to MOTOROLA INC (13)· patent assignee history
1991–2007Based in Maple Glen, PA, US· patent location history
1991–2020Based in Miami, FL, US· patent location history
1994–1997Based in Miami Lakes, FL, US· patent location history
1995–1999Patents assigned to LIBERTY TECHNOLOGIES INC (10)· patent assignee history
2015–2020Patents assigned to LIONHEAD HELMET INTELLECTUAL PROPERTIES LP (9)· patent assignee history
2015–2020Patents assigned to FREEDOM SCIENTIFIC INC (6)· patent assignee history
2015–2020Based in Ambler, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MOTOROLA INC131991–2000
LIBERTY TECH CENTER101989–1992
LIBERTY TECHNOLOGIES INC101995–1999
LIONHEAD HELMET INTELLECTUAL PROPERTIES LP92015–2020
FREEDOM SCIENTIFIC INC62015–2020
Locations
LocationPatentsSpan
Maple Glen, Pennsylvania, US201991–2007
Miami, Florida, US191991–2020
Roslyn, Pennsylvania, US101983–1992
Ambler, Pennsylvania, US92015–2020
Miami Lakes, Florida, US41994–1997