LexDanaLexDanabeta
Inventor

Michael Madden

Inventor
Chapel Hill, NC, US

Overview

3→
Patents
2011–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 3 as inventor

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

F16Dprimary
F16DCouplings for transmitting rotation29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests29%
Y10TTechnical subjects covered by former us classification29%
B61DBody details or kinds of railway vehicles14%
PatentTitleYear
11,084,508Longitudinal sliding gate for hopper car20218,267,798'Formed grease cover retention feature'20127,905,785'Sealing assembly'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2012Patents assigned to GKN DRIVELINE NORTH AMERICA (2)· patent assignee history
2011–2012Based in Chapel Hill, NC, US· patent location history
2012Patents assigned to LAWSON JAKE (1)· patent assignee history
2012Patents assigned to MADDEN MICHAEL (1)· patent assignee history
2012Patents assigned to VALOVICK BRIAN MICHAEL (1)· patent assignee history
2021Patents assigned to TRINITY IND INC (1)· patent assignee history
2021Based in Pittsburgh, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GKN DRIVELINE NORTH AMERICA22011–2012
LAWSON JAKE12012
MADDEN MICHAELself12012
TRINITY IND INC12021
VALOVICK BRIAN MICHAEL12012
Locations
LocationPatentsSpan
Chapel Hill, NC, US22011–2012
Pittsburgh, Pennsylvania, US12021