P

Inventor

POLIVKA RICHARD CARL

US5 patents
⚠️ This page may combine multiple inventors who share the name “POLIVKA RICHARD CARL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

INSITUFORM NETHERLANDS BV

4 patents
US6093363AJul 25, 2000

Method of lining pipelines with flow-through apparatus and liner

INSITUFORM NETHERLANDS BV25 citations90
US5960882AOct 5, 1999

Dual-ended apparatus for cutting openings in lined conduits

INSITUFORM NETHERLANDS BV52 citations90
US5736166AApr 7, 1998

Flow-through apparatus for lining of pipelines

INSITUFORM NETHERLANDS BV19 citations90
US6001212ADec 14, 1999

Method for lining of lateral pipelines with flow-through apparatus

INSITUFORM NETHERLANDS BV57 citations86

POLIVKA RICHARD CARL

1 patent
US8820363B2Sep 2, 2014

Wedge type plug and method of plugging a lateral line

POLIVKA RICHARD CARL14 citations69