Inventor

Gregory H. Petrak

Inventor
Golden, CO, US

Overview

14→
Patents
1990–2015
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 14 as inventor

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

F16Jprimary
F16JPistons35%
B60TVehicle brake control systems or parts thereof30%
Y10TTechnical subjects covered by former us classification25%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding5%
F16CShafts5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to P & C ENG DEV (1)· patent assignee history
1990–1992Based in Lakewood, CO, US· patent location history
1992–2012Patents assigned to PETRAK GREGORY H (6)· patent assignee history
1995–2012Based in Golden, CO, US· patent location history
2015Patents assigned to INNOVATIVE SYSTEM SOLUTIONS INC (1)· patent assignee history
2015Based in Boulder, CO, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PETRAK GREGORY Hself61992–2012
INNOVATIVE SYSTEM SOLUTIONS INC12015
P & C ENG DEV11990
Locations
LocationPatentsSpan
Golden, CO, US111995–2012
Lakewood, CO, US21990–1992
Boulder, CO, US12015