Issued Patents All Time
Showing 25 most recent of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12276360 | Combination sealing member and pipe couplings | John Gibb, Douglas R. Dole | 2025-04-15 |
| 10962152 | Method of preparing a pre-assembled pipe coupling | John Gibb, Douglas R. Dole | 2021-03-30 |
| 9726310 | Combination sealing member and pipe couplings | John Gibb, Douglas R. Dole | 2017-08-08 |
| 8979138 | Pipe coupling having movable gripping bodies | Douglas R. Dole, Torrey G. Sipos | 2015-03-17 |
| RE45304 | Pipe coupling having movable gripping bodies | Douglas R. Dole, Torrey G. Sipos | 2014-12-30 |
| 8819914 | Method of securing pipe elements in end to end relation | Craig Haney, Scott D. Madara, Douglas R. Dole, John W. Pierce | 2014-09-02 |
| 8733799 | Combination sealing member and pipe couplings | John Gibb, Douglas R. Dole | 2014-05-27 |
| 8517430 | Pipe coupling having movable gripping bodies | Douglas R. Dole, Torrey G. Sipos | 2013-08-27 |
| 8312616 | Method of using a pipe coupling having movable gripping bodies | Douglas R. Dole, Torrey G. Sipos | 2012-11-20 |
| 8267432 | Coupling having angularly oriented key surfaces | Scott D. Madara, John W. Pierce, Charles E. Wilk, Jr., Douglas R. Dole | 2012-09-18 |
| 8177263 | Pipe coupling having movable gripping bodies | Douglas R. Dole, Torrey G. Sipos | 2012-05-15 |
| D651290 | Pipe coupling segment | Amit R. Shah, Scott D. Madara | 2011-12-27 |
| 7950701 | Pipe coupling having movable gripping bodies | Douglas R. Dole, Torrey G. Sipos | 2011-05-31 |
| D634817 | Pipe coupling segment | Scott D. Madara, Amit R. Shah | 2011-03-22 |
| D629497 | Pipe coupling segment | Amit R. Shah, Scott D. Madara | 2010-12-21 |
| D629073 | Pipe coupling segment | Scott D. Madara, Amit R. Shah | 2010-12-14 |
| D629072 | Pipe coupling | Scott D. Madara, Amit R. Shah | 2010-12-14 |
| D629074 | Pipe coupling | Amit R. Shah, Scott D. Madara | 2010-12-14 |
| D629077 | Pipe coupling segment | Scott D. Madara, Amit R. Shah | 2010-12-14 |
| D629076 | Pipe coupling | Scott D. Madara, Amit R. Shah | 2010-12-14 |
| D626202 | Pipe coupling | Scott D. Madara, Amit R. Shah | 2010-10-26 |
| 7818869 | Method of using a coupling having an angularly oriented cavity | Douglas R. Dole, Scott D. Madara, William A. Nagle, John W. Pierce, William M. McPoyle | 2010-10-26 |
| 7789434 | Coupling with concave bearing surface | William A. Nagle, Scott D. Madara, Douglas R. Dole | 2010-09-07 |
| D621917 | Pipe coupling | Scott D. Madara, Amit R. Shah | 2010-08-17 |
| D621916 | Pipe coupling | Scott D. Madara, Amit R. Shah | 2010-08-17 |