Inventor

David W. Stevenson

Inventor

Mesa, AZ, US

Overview

7→

Patents

1984–2021

Patent span

Physics

Primary field (CPC G)

Patents· 7 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus16%

G01FMeasuring volume, volume flow, mass flow or liquid level8%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes8%

G07CTime or attendance registers8%

G07FCoin-freed or like apparatus8%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation8%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%

G01KMeasuring temperature4%

G01MTesting static or dynamic balance of machines or structures4%

PatentTitleYear

11,100,456System and method for determining volume of fluid in a tank2021 11,085,805System and method for identifying a fuel loss2021 4,972,089'Single package electro-optic transmitter-receiver'1990 4,650,285'Hot alignment assembly method for optoelectronic packages'1987 4,647,331'Method for assembling an electro-optical device'1987 4,456,828'Optoelectronic coupler housing'1984 4,439,006'Low cost electro-optical connector'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1990Patents assigned to MOTOROLA INC (5)· patent assignee history

1984–1987Based in Mesa, AZ, US· patent location history

1990Based in Chandler, AZ, US· patent location history

2021Patents assigned to S1 TECH INC (2)· patent assignee history

2021Based in Diana, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MOTOROLA INC	5	1984–1990
S1 TECH INC	2	2021

Locations

Location	Patents	Span
Mesa, AZ, US	4	1984–1987
Diana, Texas, US	2	2021
Chandler, AZ, US	1	1990