Inventor

Michael J. Hartmann

Inventor

Wilmington, DE, US

Overview

5→

Patents

1987–2016

Patent span

Electricity

Primary field (CPC H)

Patents· 5 as inventor

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

H02Jprimary

H02JElectric power networks13%

H04BTransmission13%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%

C03CChemical composition of glasses, glazes or vitreous enamels7%

G06FElectric digital data processing7%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems7%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation7%

H10HInorganic light-emitting semiconductor devices having potential barriers7%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%

Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids7%

PatentTitleYear

9,444,362'Rectifier circuit with current injection'2016 6,947,672'High-speed optical data links'2005 6,665,498'High-speed optical data links'2003 5,359,711'Determination of load flow in direct current electrical systems'1994 4,699,831'Electrically insulating body'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to CORNING GLASS WORKS (1)· patent assignee history

1987Based in Calabasas, CA, US· patent location history

1994Patents assigned to VECTRA TECHN INC (1)· patent assignee history

1994Based in Cary, IL, US· patent location history

2003–2005Based in Wilmington, DE, US· patent location history

2005Patents assigned to JDS UNIPHASE CORP (1)· patent assignee history

2016Patents assigned to SCHNEIDER ELECTRIC POWER DRIVES GMBH (1)· patent assignee history

2016Based in Vienna, AT· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CORNING GLASS WORKS	1	1987
JDS UNIPHASE CORP	1	2005
SCHNEIDER ELECTRIC POWER DRIVES GMBH	1	2016
VECTRA TECHN INC	1	1994

Locations

Location	Patents	Span
Wilmington, Delaware, US	2	2003–2005
Vienna, AT	1	2016
Cary, Illinois, US	1	1994
Calabasas, California, US	1	1987