Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6021832 | Self-contained and self-propelled machine and method for heat fusing polyolefin pipes | Arthur H. McElroy, II, David W. Porter, Kean C. Chin | 2000-02-08 |
| 5814182 | Self-contained and self-propelled machine for heat fusing polyolefin pipes | Arthur H. McElroy, II, David W. Porter, Kean C. Chin | 1998-09-29 |
| 5423121 | Automated fin tube process | Arthur H. McElroy, II, James C. Calderwood, Chi K. Chim | 1995-06-13 |
| 4230986 | Apparatus for facilitating the servicing of printed circuit boards | Ralph C. Eifort, John A. Nagel, II | 1980-10-28 |