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Inventor

Beat Buchmann

Inventor
CH

Overview

2→
Patents
2023–2025
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.

G01Rprimary
G01RMeasuring electric variables25%
H02HEmergency protective circuit arrangements25%
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 systems25%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters25%
PatentTitleYear
12,510,606Method for detecting earth faults and frequency converter system with earth fault detection202511,695,318Current feedback control for a power converter with multiple feedback loops2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to HITACHI ENERGY SWITZERLAND AG (1)· patent assignee history
2023–2025Based in CH· patent location history
2025Patents assigned to HITACHI ENERGY LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI ENERGY LTD12025
HITACHI ENERGY SWITZERLAND AG12023
Locations
LocationPatentsSpan
CH22023–2025