Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9453597 | Air inversion and steam cure of cured in place liners apparatus | Charles Delaney, Kurt Schlake, Joseph M. Coyne, Richard C. Polivka | 2016-09-27 |
| 8083975 | Exhaust and/or condensate port for cured in place liners and installation methods and apparatus | Paul L. Driver, Joseph M. Coyne, Richard P. Baxter | 2011-12-27 |
| 8066499 | Dual gland air inversion and steam cure of cured in place liners | Steve Hirtz, Richard C. Polivka, James H. Blasczyk, Neil T. Birchler, Kyle Costa | 2011-11-29 |
| 8038913 | Installation of cured in place liners with dual gland air inversion and steam cure apparatus | Steve Hirtz, Richard C. Polivka, James H. Blasczyk, Neil T. Birchler, Kyle Costa | 2011-10-18 |
| 7866968 | Reusable inversion sleeve assembly for inversion of cured in place liners | Neil T. Birchler, Kyle Costa, Richard C. Polivka, Weiping Wang | 2011-01-11 |
| 7857932 | Cured in place liner with everted outer impermeable layer and method of manufacture | Weiping Wang | 2010-12-28 |
| 7766048 | Installation of cured in place liners with air and flow-through steam to cure | Weiping Wang, Joseph M. Coyne | 2010-08-03 |
| 7360559 | Steam cure of cured in place liner | Weiping Wang | 2008-04-22 |
| 7261788 | Preparation of cured in place liner with integral inner impermeable layer | — | 2007-08-28 |
| 7238251 | Method of preparing cured in place liner using resin impregnation tower | Weiping Wang | 2007-07-03 |
| 7112254 | Installation of cured in place liner with inner impermeable layer and apparatus | — | 2006-09-26 |
| 7108456 | Steam cure of cured in place liner | Weiping Wang | 2006-09-19 |
| 6969216 | Pressurized bladder canister for installation of cured in place pipe | — | 2005-11-29 |
| 6708728 | Installation of cured in place liners with air and steam and installation apparatus | Weiping Wang | 2004-03-23 |
| 6682668 | Installation of cured in place liners with an endless reusable inflation bladder and installation apparatus | Charles H. Nance, Richard C. Polivka | 2004-01-27 |
| 6679293 | Pressurized bladder canister for installation of cured in place pipe | — | 2004-01-20 |
| 6539979 | Pressurized bladder canister for installation of cured in place pipe | — | 2003-04-01 |
| 5737822 | Corporation stop assembly | Joseph D. Carroll | 1998-04-14 |
| 5655283 | Corporation stop assembly | Joseph D. Carroll | 1997-08-12 |
| 5318395 | Method and apparatus for porting lateral connections in lined pipelines | — | 1994-06-07 |