Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846130 | Method and apparatus for enhancement of prefabricated earth drains | — | 2005-01-25 |
| 6312190 | Method and apparatus for enhancement of prefabricated composite vertical drains | — | 2001-11-06 |
| 6179527 | Apparatus for inserting flexible members into the earth | — | 2001-01-30 |
| 6164868 | Prefabricated vertical earth drain with relief protrusions | — | 2000-12-26 |
| 6142711 | Vibrator having a rotating and oscillating housing | — | 2000-11-07 |
| 5820296 | Prefabricated vertical earth drain and method of making the same | — | 1998-10-13 |
| 5800090 | Apparatus and method for liquefaction remediation of liquefiable soils | — | 1998-09-01 |
| 5658091 | Apparatus for inserting prefabricated vertical drains into the earth | C. Russell Joiner | 1997-08-19 |
| 5439326 | Apparatus for inserting prefabricated vertical drains into the earth | T. Richard Morris | 1995-08-08 |
| 5279502 | Apparatus and method for constructing compacted granular or stone columns in soil masses | — | 1994-01-18 |
| 4397588 | Method of constructing a compacted granular or stone column in soil masses and apparatus therefor | — | 1983-08-09 |