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Inventor

Alexander Fichtner

Inventor
Memmelsdorf, DE

Overview

3→
Patents
2009–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

F01Lprimary
F01LCyclically operating valves for machines or engines25%
B21LMaking metal chains13%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof13%
F04BPositive-displacement machines for liquids13%
F16GBelts, cables, or ropes, predominantly used for driving purposes13%
F16KValves13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
10,774,692Tappet20209,611,763'Control valve for a hydraulic apparatus with locking facility'20177,472,538'Method for producing rollers and sleeves for chains'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009Patents assigned to SCHAEFFLER KG (1)· patent assignee history
2009Based in Herzogenaurach, DE· patent location history
2017–2020Patents assigned to SCHAEFFLER TECHNOLOGIES AG (2)· patent assignee history
2017–2020Based in Memmelsdorf, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHAEFFLER TECHNOLOGIES AG22017–2020
SCHAEFFLER KG12009
Locations
LocationPatentsSpan
Memmelsdorf, DE22017–2020
Herzogenaurach, DE12009