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Inventor

Stephen L. Maddox

Inventor
Elmond, OK, US

Overview

2→
Patents
2009–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F21Sprimary
F21SNon-portable lighting devices17%
F21VFunctional features or details of lighting devices or systems thereof17%
F24FAir-conditioning17%
G02BOptical elements, systems or apparatus17%
H04NPictorial communication, e.g. television17%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications17%
PatentTitleYear
11,060,746Systems and methods for detecting and responding to refrigerant leaks in heating, ventilating, and air conditioning systems20217,581,852'Portable device for viewing and imaging'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009Patents assigned to XENONICS INC (1)· patent assignee history
2009Based in Encinitas, CA, US· patent location history
2021Patents assigned to JOHNSON CONTROLS TECH CO (1)· patent assignee history
2021Based in Elmond, OK, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JOHNSON CONTROLS TECH CO12021
XENONICS INC12009
Locations
LocationPatentsSpan
Elmond, OK, US12021
Encinitas, California, US12009