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| 9970720 | Method for monitoring a heat exchanger unit | Jun 07, 17 | May 15, 18 | GLOBAL HEAT TRANSFER ULC |
| 9964368 | Flexible multi-tube cleaning lance positioner guide apparatus | Apr 14, 17 | May 08, 18 | Stoneage Inc. |
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| 9952008 | Cleaning of heat exchanger core | Mar 23, 12 | Apr 24, 18 | Tube Tech International Limited |
| 9950348 | Flexible cleaning lance positioner guide apparatus | Oct 02, 15 | Apr 24, 18 | Stoneage Inc. |
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| 9939214 | Scrape-off type heat exchanger | Dec 04, 13 | Apr 10, 18 | NOA CO., LTD. |
| 9938490 | Systems and methods for tabletized tube cleaning | Aug 20, 15 | Apr 10, 18 | Crossford International, LLC |
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| 9920925 | Steam generator sludge lance apparatus | Dec 20, 13 | Mar 20, 18 | WESTINGHOUSE ELECTRIC COMPANY LLC |
| 9921012 | Water heating apparatus | Nov 26, 13 | Mar 20, 18 | NORITZ CORPORATION |
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| 9903673 | Intelligent ball for monitoring and diagnosis of heat exchanger tube health | Sep 08, 16 | Feb 27, 18 | Sentinel Diagnostics, LLC |
| 9896299 | Endless belt flexible tube cleaning lance drive apparatus | Apr 24, 17 | Feb 20, 18 | STONEAGE, INC. |
| 9897401 | Chemical cleaning of furnaces, heaters and boilers during their operation | Sep 13, 16 | Feb 20, 18 | SENTRO TECHNOLOGIES USA, LLC |
| 9863727 | Mobile hydro-blasting equipment and tube lancing containment system | Jul 11, 16 | Jan 09, 18 | Not available |