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Inventor

Stephanus J. Spammer

Inventor
Painted Post, NY, US

Overview

2→
Patents
1994–2003
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G01Cprimary
G01CMeasuring distances, levels or bearings33%
G02BOptical elements, systems or apparatus33%
H04JMultiplex communication33%
PatentTitleYear
6,546,167'Tunable grating optical device'20035,289,259'Apparatus for extracting a variable from two quadrature signals being functions of the variable'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to RAND AFRIKAANS UNIVERSITY (1)· patent assignee history
1994Based in Florida Park, ZA· patent location history
2003Patents assigned to CORNING INC (1)· patent assignee history
2003Based in Painted Post, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CORNING INC12003
RAND AFRIKAANS UNIVERSITY11994
Locations
LocationPatentsSpan
Painted Post, New York, US12003
Florida Park, ZA11994