Flexible Subscriptions to Match your Budget and Timeline See Plans and Pricing

Serving leading biopharmaceutical companies globally:

Johnson and Johnson

Last Updated: December 8, 2021

DrugPatentWatch Database Preview

Patent: 4,486,315

➤ Subscribe for complete access

« Back to Dashboard

Summary for Patent: 4,486,315
Title: Immunoassay microparticle washing system and method of use
Abstract:A particle washing system and method of use provides for the placement of the fluid containing the desired particles within an inner tube having near the bottom thereof an orifice plugged with a material for sealing the particulate containing fluid from a wash fluid under forces substantially equal to 1G. The inner tube is positioned within an outer tube which contains a wash fluid having a density at least equal to that of the particle containing solution but less than that of the particles. Application of centrifugal force, substantially greater than 1G, and directed toward the bottom of the outer tube, causes the sealing material to be dislodged thereby permitting the particles to move through the orifice and through the outer solution. Thus the particles are collected from the inner solution, washed by the outer solution, and pelleted at the bottom of the outer tube.
Inventor(s): Teipel; John W. (Skillman, NJ)
Assignee: Ortho Diagnostic Systems Inc. (Raritan, NJ)
Application Number:06/358,419
Patent Claims:see list of patent claims

Details for Patent 4,486,315

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

Make Better Decisions: Try a trial or see plans & pricing

Serving leading biopharmaceutical companies globally:

Johnson and Johnson
Harvard Business School
Express Scripts

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.