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Last Updated: December 1, 2021

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Patent: 4,435,293

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Summary for Patent: 4,435,293
Title: Particle washing system and method of use
Abstract:A particle washing system and method of use is described wherein in a preferred embodiment the fluid containing the desired particles is placed within an inner tube having near the bottom thereof an orifice with a diameter at least equal to that of the diameter of the particles, an air vent and, wherein the inner tube is positioned within an outer tube having a fluid with a density at least equal to that of the solution containing the particles to be separated within the inner tube but less than that of the particles. The application of centrifugal force to the particles directed toward the bottom of the outer tube causes the particles to move through orifice and through the outer solution contained within the outer tube so that the particles are collected from the inner solution, washed by the outer solution, and subsequently sedimented at the bottom of the outer tube.
Inventor(s): Graham, Jr.; Henry A. (Annandale, NJ), Hawk; Johnna B. (Rocky Hill, NJ), Chachowski; Rosemary K. (Manville, NJ)
Assignee: Ortho Diagnostic Systems Inc. (Raritan, NJ)
Application Number:06/290,267
Patent Claims:see list of patent claims

Details for Patent 4,435,293

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Grifols Therapeutics Llc ALBUKED, PLASBUMIN-20, PLASBUMIN-25, PLASBUMIN-5 albumin (human) For Injection 101138 1942-10-21 ⤷  Try it Free 2040-01-28
Baxalta Us Inc. BUMINATE, FLEXBUMIN albumin (human) Injection 101452 1954-03-03 ⤷  Try it Free 2040-01-28
Csl Behring Ag ALBURX albumin (human) Injection 102366 1976-07-23 ⤷  Try it Free 2040-01-28
Grifols Biologicals Llc ALBUTEIN albumin (human) Injection 102478 1978-08-15 ⤷  Try it Free 2040-01-28
Instituto Grifols, S.a. HUMAN ALBUMIN GRIFOLS albumin (human) Injection 103352 1995-02-17 ⤷  Try it Free 2040-01-28
Instituto Grifols, S.a. HUMAN ALBUMIN GRIFOLS albumin (human) Injection 103352 2003-06-11 ⤷  Try it Free 2040-01-28
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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