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Inventor

Richard C. Polivka

Inventor
Lemont, IL, US

Overview

11→
Patents
1998–2016
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 11 as inventor

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

F16Lprimary
F16LPipes46%
B29CShaping or joining of plastics29%
Y10TTechnical subjects covered by former us classification21%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding4%
PatentTitleYear
9,453,597'Air inversion and steam cure of cured in place liners apparatus'20168,820,363'Wedge type plug and method of plugging a lateral line'20148,066,499'Dual gland air inversion and steam cure of cured in place liners'20118,038,913'Installation of cured in place liners with dual gland air inversion and steam cure apparatus'20118,015,695'Reinstatement of an existing connection in a lined conduit'20117,866,968'Reusable inversion sleeve assembly for inversion of cured in place liners'20116,682,668'Installation of cured in place liners with an endless reusable inflation bladder and installation apparatus'20046,093,363'Method of lining pipelines with flow-through apparatus and liner'20006,001,212'Method for lining of lateral pipelines with flow-through apparatus'19995,960,882'Dual-ended apparatus for cutting openings in lined conduits'19995,736,166'Flow-through apparatus for lining of pipelines'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2004Patents assigned to INSITUFORM NETHERLANDS BV (5)· patent assignee history
1998–2016Based in Lemont, IL, US· patent location history
2011–2016Patents assigned to INA ACQUISITION CORP (6)· patent assignee history
2011–2014Patents assigned to COSTA KYLE M (2)· patent assignee history
2011Patents assigned to BIRCHLER NEIL T (1)· patent assignee history
2011Patents assigned to BLASCZYK JAMES H (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
INA ACQUISITION CORP62011–2016
INSITUFORM NETHERLANDS BV51998–2004
COSTA KYLE M22011–2014
BIRCHLER NEIL T12011
BLASCZYK JAMES H12011
Locations
LocationPatentsSpan
Lemont, Illinois, US111998–2016