LexDanaLexDanabeta
Inventor

Harry V. Nquyen

Inventor
St. Petersburg, FL, US

Overview

1→
Patents
1989
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

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

E05Fprimary
E05FDevices for moving wings into open or closed position33%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof33%
G01SRadio direction-finding33%
PatentTitleYear
4,866,881'Automatic door safety system'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to LANSON ELECTRONICS INC (1)· patent assignee history
1989Based in St. Petersburg, FL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LANSON ELECTRONICS INC11989
Locations
LocationPatentsSpan
St. Petersburg, Florida, US11989