Inventor
David L. Kaehler
Inventor
Greensboro, NC, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Qprimary
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes26%
G07FCoin-freed or like apparatus17%
B67DDispensing, delivering or transferring liquids, not otherwise provided for13%
G01MTesting static or dynamic balance of machines or structures9%
Y10TTechnical subjects covered by former us classification9%
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for4%
G01FMeasuring volume, volume flow, mass flow or liquid level4%
G05DSystems for controlling or regulating non-electric variables4%
G09BEducational or demonstration appliances4%
H04MTelephonic communication4%
PatentTitleYear
6,935,356'Underground storage tank metering system in a service station environment'20056,929,018'Underground storage tank metering system in a service station environment'20056,092,410'Meter calibration and drift compensation device'20006,089,284'Preconditioning a fuel dispensing system using a transponder'20006,087,954'System for enabling handicapped individuals to use gasoline dispensers'20006,078,896'Video identification for forecourt advertising'20006,032,126'Audio and audio/video operator intercom for a fuel dispenser'20005,979,705'Fuel blending using blend component octane levels'19995,798,931'Fuel dispenser/operator intercom system'19984,967,366'Integrated gasoline dispenser and POS authorization system with unattached pin pad'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2005Patents assigned to GILBARCO INC (6)· patent assignee history
1990–2005Based in Greensboro, NC, US· patent location history
2000Patents assigned to MARCONI COMMERCE SYS INC (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GILBARCO INC | 6 | 1990–2005 |
| MARCONI COMMERCE SYS INC | 4 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Greensboro, NC, US | 10 | 1990–2005 |