Inventor

Keith R. Spencer

Inventor

Sheboygan, WI, US

Overview

6→

Patents

1990–1998

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 6 as inventor

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

B60Qprimary

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general13%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for13%

F21SNon-portable lighting devices13%

F21VFunctional features or details of lighting devices or systems thereof13%

G21CNuclear reactors13%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%

B23KSoldering or unsoldering7%

F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems7%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted7%

PatentTitleYear

5,788,357'Mirror assembly'1998 D0363920'Electrical circuit board'1995 5,361,190'Mirror assembly'1994 5,315,089'System and method for converting an AGTAW welder into an AGMAW welder'1994 5,019,325'Method for removing and installing a control rod drive'1991 4,973,443'System for removing and installing a control rod drive'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1994Patents assigned to WESTINGHOUSE ELECTRIC CORP (3)· patent assignee history

1990–1994Based in West Miltmore, IL, US· patent location history

1994–1998Patents assigned to MUTH K W CO INC (3)· patent assignee history

1994–1998Based in Sheboygan, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MUTH K W CO INC	3	1994–1998
WESTINGHOUSE ELECTRIC CORP	3	1990–1994

Locations

Location	Patents	Span
Sheboygan, WI, US	3	1994–1998
West Miltmore, Illinois, US	3	1990–1994