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| US4352262 | 18. Aug. 1980 | 5. Okt. 1982 | | Method of sealing cracks and apparatus therefor |
| US4686810 | 28. Febr. 1985 | 18. Aug. 1987 | | Method for leakproofing building walls, as well as insertion element for implementing the method |
| US4787557 | 15. Jan. 1988 | 29. Nov. 1988 | | Solid set spike irrigation head connecting device |
| US4793162 | 7. Aug. 1986 | 27. Dez. 1988 | SPT, Inc. | Method for repairing failed waterstops and products relating to same |
| US4865879 | 31. März 1988 | 12. Sept. 1989 | | Method for restoring and reinforcing wooden structural component |
| US5175974 | 27. Jan. 1992 | 5. Jan. 1993 | | Repairing squeaking floors |
| US5671581 | 7. Dez. 1995 | 30. Sept. 1997 | | Water cut-off process for concrete structure |
