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Inventor

Dirk Kratzer

Inventor
Hannover, DE

Overview

2→
Patents
2010–2015
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.

H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy25%
H02JElectric power networks25%
LOC1325%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%
PatentTitleYear
9,184,474'Rechargeable battery unit and portable electronic appliance'2015D0626504'Accumulator'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2015Patents assigned to SENNHEISER ELECTRONIC (2)· patent assignee history
2010–2015Based in Hannover, DE· patent location history
2015Patents assigned to KRÄTZER DIRK (1)· patent assignee history
2015Patents assigned to REYMANN DIRK (1)· patent assignee history
2015Patents assigned to SCHULZE ELMAR (1)· patent assignee history
2015Patents assigned to STEEN HANSEN NIELS CHRISTIAN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SENNHEISER ELECTRONIC22010–2015
KRÄTZER DIRKself12015
REYMANN DIRK12015
SCHULZE ELMAR12015
STEEN HANSEN NIELS CHRISTIAN12015
Locations
LocationPatentsSpan
Hannover, DE22010–2015