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Inventor

Daniel K. Kessler

Inventor
New York, NY, US

Overview

2→
Patents
1993–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F21Vprimary
F21VFunctional features or details of lighting devices or systems thereof25%
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 emitted25%
G02BOptical elements, systems or apparatus25%
H10HInorganic light-emitting semiconductor devices having potential barriers25%
PatentTitleYear
10,989,390Folded optics methods and apparatus for improving efficiency of LED-based luminaires2021D0339889'Oil absorbing pad'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to HUGHES DANIEL L (1)· patent assignee history
1993Patents assigned to KESSLER DANIEL K (1)· patent assignee history
1993Based in Newton, IL, US· patent location history
2021Patents assigned to DMF INC (1)· patent assignee history
2021Based in New York, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DMF INC12021
HUGHES DANIEL L11993
KESSLER DANIEL Kself11993
Locations
LocationPatentsSpan
New York, New York, US12021
Newton, Illinois, US11993