LexDanaLexDanabeta
Inventor

JOHN F. LEMKE

Inventor
US

Overview

2→
Patents
2025
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

F24Dprimary
F24DDomestic- or space-heating systems, e.g. central heating systems17%
G01RMeasuring electric variables17%
H01LSemiconductor devices17%
H05BElectric heating17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications17%
PatentTitleYear
12,449,449Power converter for a thermal system202512,436,175Power converter for a thermal system2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to WATLOW ELECTRIC MFG (2)· patent assignee history
2025Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WATLOW ELECTRIC MFG22025
Locations
LocationPatentsSpan
US22025