Inventor

Thomas L. Roberts

Inventor

Mukwonago, WI, US

Overview

1983–2019

Patent span

Mechanical engineering

Primary field (CPC F)

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

LOC12primary

LOC1221%

A61BDiagnosis13%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for13%

F01LCyclically operating valves for machines or engines8%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general8%

F02DControlling combustion engines8%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%

Y02TClimate change mitigation technologies related to transportation8%

B23DPlaning4%

H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1983–2016Patents assigned to VELVAC INC (10)· patent assignee history

1983–2016Based in Mukwonago, WI, US· patent location history

1999–2003Based in Snohomish, WA, US· patent location history

2013–2016Patents assigned to ROBERTS THOMAS L (7)· patent assignee history

2015–2016Patents assigned to MAYER BART T (5)· patent assignee history

2015–2016Patents assigned to NEELEY BRIAN D (5)· patent assignee history

2015–2016Patents assigned to SPERFSLAGE TANDREA L (5)· patent assignee history

2017–2019Based in Ventura, CA, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations