Inventor

Frederick A. Williams

Inventor

Bellevue, WA, US

Overview

1985–2019

Patent span

Electricity

Primary field (CPC H)

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

A01Dprimary

A01DHarvesting13%

E02FDredging13%

A47BTables6%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general6%

B62DMotor vehicles6%

G09FDisplaying6%

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 systems6%

H03KPulse technique6%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses6%

H03MCoding6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to BROWN TRACTORS LTD (2)· patent assignee history

1985Based in Warrington, GB· patent location history

1989Patents assigned to AMAF IND INC (1)· patent assignee history

1989Patents assigned to TRW INC (1)· patent assignee history

1989Based in Encinitas, CA, US· patent location history

1996Patents assigned to RAYTHEON CO (1)· patent assignee history

1996–2019Based in Bellevue, WA, US· patent location history

1999–2001Based in Tallahassee, FL, US· patent location history

2015Based in London, GB· patent location history

2019Patents assigned to SIEMENS MEDICAL SOLUTIONS USA INC (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BROWN TRACTORS LTD	2	1985
AMAF IND INC	1	1989
RAYTHEON CO	1	1996
SIEMENS MEDICAL SOLUTIONS USA INC	1	2019
TRW INC	1	1989

Locations