Patent assignee · NL · COMPANY

Insituform (Netherlands) B.V.

55Patents
1Active
55Granted
39Portfolio score

Filing activity: Jun 29, 1992 → Sep 18, 2006 · 1 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US6068725A Method of installation of a flexible cured in place lateral seal in an existing main pipeline Mechanical Engineering; Lighting; Heating 77 Expired
US5393481A Lining of pipelines or passageways Emerging Cross-Sectional Technologies 57 Expired
US5927341A "Lining of ""Tees"" and ""Wyes"" in pipelines or passageways" Performing Operations; Transporting 57 Expired
US5915419A Cured in place lateral seal for relining of pipelines and method of manufacture Mechanical Engineering; Lighting; Heating 54 Expired
US5374174A Apparatus for/installing a liner within a service pipe or the like Mechanical Engineering; Lighting; Heating 48 Expired
US5706861A Rehabilitation of pipelines and passageways with a flexible liner using an inflatible bladder Mechanical Engineering; Lighting; Heating 48 Expired
US5778938A Method of installation of dual containment pipe rehabilitation system Mechanical Engineering; Lighting; Heating 47 Expired
US5546992A Dual containment pipe rehabilitation system Mechanical Engineering; Lighting; Heating 39 Expired
US5692543A Lining of lateral pipelines with a liner having a sealing collar Mechanical Engineering; Lighting; Heating 37 Expired
US6539979B1 Pressurized bladder canister for installation of cured in place pipe Mechanical Engineering; Lighting; Heating 35 Expired
US6123110A Dual containment pipe system and a manhole system Physics 32 Expired
US5656117A Method of lining passageways by applying a pre-liner sleeve and hardenable composition Mechanical Engineering; Lighting; Heating 32 Expired
US5624629A Installation of lateral linings with sealing collar from the main pipeline out Emerging Cross-Sectional Technologies 32 Expired
US6708728B2 Installation of cured in place liners with air and steam and installation apparatus Performing Operations; Transporting 31 Expired
US6001212A Method for lining of lateral pipelines with flow-through apparatus Mechanical Engineering; Lighting; Heating 31 Expired
US6029726A Apparatus for installing a flexible cured in place lateral seal in an existing main pipeline Performing Operations; Transporting 30 Expired
US5409561A Lining of passageways Mechanical Engineering; Lighting; Heating 29 Expired
US5743299A Dual containment pipe rehabilitation system and method of installation Mechanical Engineering; Lighting; Heating 29 Expired
US5358359A Apparatus for everting a tube Mechanical Engineering; Lighting; Heating 29 Expired
US6117507A Sealed inversion liner for lining an existing pipeline or conduit Emerging Cross-Sectional Technologies 28 Expired
US6612340B1 Turnback protection for installation of cured in place liners Mechanical Engineering; Lighting; Heating 25 Expired
US5960882A Dual-ended apparatus for cutting openings in lined conduits Mechanical Engineering; Lighting; Heating 25 Expired
US6354330B1 Lining of pipelines with a flexible lining including a heat curable resin by curling in stages Fixed Constructions 25 Expired
US6932116B2 Fiber reinforced composite liner for lining an existing conduit and method of manufacture Mechanical Engineering; Lighting; Heating 23 Expired
US6679293B2 Pressurized bladder canister for installation of cured in place pipe Mechanical Engineering; Lighting; Heating 23 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.