LexDanaLexDanabeta
Inventor

Brian E Simmers

Inventor
Derby, GB

Overview

4→
Patents
2008–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

F25Dprimary
F25DRefrigerators22%
H10NElectric solid-state devices not otherwise provided for22%
F01DNon-positive displacement machines or engines, e.g. steam turbines11%
F02CGas-turbine plants11%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants11%
G05BControl or regulating systems in general11%
H02KDynamo-electric machines11%
PatentTitleYear
10,637,326Variable gear ratio electrical machine20208,037,695'Fault current limiter'20117,444,826'Fault current limiter'20087,324,008'Method of predicting condition during operation of an electrical machine'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008–2020Patents assigned to ROLLS ROYCE PLC (4)· patent assignee history
2008–2020Based in Derby, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ROLLS ROYCE PLC42008–2020
Locations
LocationPatentsSpan
Derby, GB42008–2020