Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8561628 | Continuous gas service restoration and meter change-out system | Winston Charles Meyer, Michael Zandaroski, Thomas Seifert, Dimitri Karastamalis, Scott Ogren +6 more | 2013-10-22 |
| 5589630 | Fast gas chromatography method, apparatus and applications | Patrick M. Wiegand, John R. Parrish, Elizabeth Ballard, Courtland P. Sears, III, George W. Schwarz, Jr. +1 more | 1996-12-31 |
| 5437179 | Fast gas chromatography method, apparatus and applications | Patrick M. Wiegand, John R. Parris, Elizabeth Ballard, Courtland P. Sears, III, George W. Schwarz, Jr. +1 more | 1995-08-01 |
| 5276975 | Audible-visual edge finder | — | 1994-01-11 |