Perm Inc.
Records under this name other than the patents Perm Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 8 patents it holds.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,721,596 | Method for net decrease of hazardous radioactive nuclear waste materials Term ended Term ended no later than Jan 26, 2008 · Low confidence | Term ended | Term ended no later than Jan 26, 2008 | Low confidence |