Inventor

John E. Sipe

Inventor
Toronto, CA

Overview

13→
Patents
1993–2021
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein28%
G02BOptical elements, systems or apparatus16%
Y10TTechnical subjects covered by former us classification12%
B29DProducing particular articles from plastics or from substances in a plastic state8%
B41DApparatus for the mechanical reproduction of printing surfaces for stereotype printing8%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light8%
H04BTransmission8%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G01RMeasuring electric variables4%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2021Based in Toronto, CA· patent location history
2003–2017Patents assigned to SIPE JOHN (2)· patent assignee history
2004–2014Patents assigned to SIPE JOHN EDWARD (2)· patent assignee history
2013–2017Patents assigned to LISCIDINI MARCO (3)· patent assignee history
2013–2016Patents assigned to RYCKMAN JUDSON D (2)· patent assignee history
2013–2016Patents assigned to SIPE JOHN E (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LISCIDINI MARCO32013–2017
RYCKMAN JUDSON D22013–2016
SIPE JOHNself22003–2017
SIPE JOHN Eself22013–2016
SIPE JOHN EDWARDself22004–2014
Locations
LocationPatentsSpan
Toronto, CA131993–2021