The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2026
Filed:
Aug. 25, 2021
Enwave Corporation, Delta, CA;
EnWave Corporation, Delta, CA (US);
Abstract
Methods for dryingin continuous throughput-type and batch-type microwave vacuum drying apparatus. One method uses a vacuum chamber having a plurality of adjacent drying zones. Theis conveyed through each of the zones while exposing it to microwave radiation. Each of the drying zones has a microwave power level different from that of an adjacent drying zone, the microwave power levels of zones varying from each other in a non-linear arrangement from the first zone to the last zone. In a batch method,is loaded into a vacuum chamber, the pressure is reduced, and theis irradiated with microwave radiation at a first power level. The surface temperature of theis measured and when the temperature exceeds a specified temperature for a time period greater than a first time period, the power level is reduced to a lower power level for a second time period. The methods of drying maximize the retention of terpenes in the
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