Inventor

Eugene C. Letter

Inventor
Webster, NY, US

Overview

10→
Patents
1979–2018
Patent span
Performing operations
Primary field (CPC B)

Patents· 10 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus21%
B05DProcesses for applying fluent materials to surfaces, in general15%
B82YSpecific uses or applications of nanostructures15%
C23CCoating metallic material9%
F21VFunctional features or details of lighting devices or systems thereof9%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
F21SNon-portable lighting devices6%
G02CSpectacles6%
B29DProducing particular articles from plastics or from substances in a plastic state3%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1992Patents assigned to BAUSCH & LOMB (5)· patent assignee history
1979–1992Based in Rochester, NY, US· patent location history
2015–2016Patents assigned to QSPEX TECHNOLOGIES INC (3)· patent assignee history
2015–2018Based in Webster, NY, US· patent location history
2018Patents assigned to QSPEX TECH INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAUSCH & LOMB51979–1992
QSPEX TECHNOLOGIES INC32015–2016
QSPEX TECH INC22018
Locations
LocationPatentsSpan
Webster, New York, US52015–2018
Rochester, New York, US51979–1992