| 6653945 |
Radio communication network for collecting data from utility meters |
Dennis F. Johnson, Michael Wiebe, Erwin Holowick, Michael F. Murhpy, James J. Schellenberg +1 more |
2003-11-25 |
| 6373399 |
Wide area communications network for remote data generating stations |
Dennis F. Johnson, Michael Wiebe, Erwin Holowick, Michael Murphy, James J. Schellenberg +1 more |
2002-04-16 |
| 6172616 |
Wide area communications network for remote data generating stations |
Dennis F. Johnson, Michael Wiebe, Erwin Holowick, Michael Murphy, James J. Schellenberg +1 more |
2001-01-09 |
| 5963146 |
Wide area communications network for remote data generating stations |
Dennis F. Johnson, Michael Wiebe, Erwin Holowick, Michael F. Murhpy, James J. Schellenberg +1 more |
1999-10-05 |
| 5553094 |
Radio communication network for remote data generating stations |
Dennis F. Johnson, Michael Wiebe, Erwin Holowick, Michael Murphy, James J. Schellenberg +1 more |
1996-09-03 |