US PATENT SUBCLASS 427 / 2.15
.~.~ Fluidized bed utilized

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

2.1  DF  MEDICAL OR DENTAL PURPOSE PRODUCT; PARTS; SUBCOMBINATIONS; INTERMEDIATES (E.G., BALLOON CATHETER, SPLINT) {7}
2.14  DF  .~ Particulate or unit-dosage-article base (e.g., tablet, pill, pellet, capsule, liposome, powder, controlled-release implant, suppository; excluding transdermal patch) {5}
2.15.~.~ Fluidized bed utilized {2}
2.16  DF  .~.~.~> Retarded or controlled-release layer produced (e.g., enteric)
2.17  DF  .~.~.~> Significant color or other intended appearance altering layer formed (e.g., shining, indicia)

DEFINITION

Classification: 427/2.15

Fluidized bed utilized:

(under subclass 2.14) Processes in which a bed or mass of particles or unit-dosage-articles is maintained in a state of fluidized suspension by passing a gas or vapor in a generally upward direction through the particles or unit-dosage-articles.

(1) Note. Coating material may be introduced directly into the fluidized mass or along with the fluidizing gas or vapor.

(2) Note. Placement here does not require that the particles or unit-dosage-articles be coated while in the fluidizing gas or vapor; they may be coated before entry to or after exit from the fluidized bed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

213+, for such processes acting on solid granules, pellets, beads, flakes, platelets, or other particles when other than a medical or dental product is produced.