Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Blood proteins or globulins – e.g. – proteoglycans – platelet...
Reexamination Certificate
2005-03-15
2005-03-15
Weber, Jon (Department: 1653)
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Blood proteins or globulins, e.g., proteoglycans, platelet...
C530S380000, C514S002600
Reexamination Certificate
active
06867285
ABSTRACT:
Contaminant viruses can be efficiently removed almost without losing the activity of protein by subjecting a plasma protein composition having a high risk of viral contamination to a treatment with a porous membrane having a pore size greater than a single-particle size of the virus, particularly by subjecting a plasma protein composition to a fractionation treatment by precipitation, before the porous membrane treatment. Particularly, a fibrinogen composition substantially free of non-enveloped viruses, Parvovirus among others, can be provided. By the application of the present invention, a safe plasma protein preparation free of viruses can be conveniently provided.
REFERENCES:
patent: 4543210 (1985-09-01), Mitra et al.
patent: 5817765 (1998-10-01), Isaksson et al.
patent: 6096872 (2000-08-01), Van Holten et al.
patent: 6413714 (2002-07-01), Margolis-Nunno et al.
patent: 6429192 (2002-08-01), Laursen
patent: 1-192368 (1989-08-01), None
patent: 1-254205 (1989-10-01), None
patent: 10-506607 (1998-06-01), None
Burnouf, T. and Radosevich, M. Haemophilia 9(1): 24-37 Jan. 2003.*
Alsono-Rubiano, E. et al. Haemophilia 9(1): 110-115 Jan. 2003.
Furushima Koji
Hamato Nobuaki
Morita Masanori
Takahashi Tsuyoshi
Tsujikawa Muneo
Desai Anand
Mitsubishi Pharma Corporation
Weber Jon
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Virus-free plasma protein compositions treated with porous... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Virus-free plasma protein compositions treated with porous..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virus-free plasma protein compositions treated with porous... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3444435