Methods and systems for polymer precipitation and generation of particles

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9598503
SERIAL NO

13864429

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Processes for precipitating a polymer from a polymer-containing fluid are disclosed, which include providing a vessel housing a medium that provides one or more precipitation surfaces. A polymer-containing fluid, e.g., a polymer solution, dispersion or mixed solution/dispersion, and an anti-solvent can be introduced into the vessel so as to cause precipitation of at least a portion of the polymer on at least one of the precipitation surfaces. In some embodiments, the polymer contains one or more cyclic oligosaccharide moieties, such as one or more cyclodextrin moieties (e.g., α-cyclodextrin, β-cyclodextrin, and γ-cyclodextrin). The polymer can be any of a linear or branched polymer. The polymer can be any of polycation, a polyanion, or a non-ionic polymer. Also disclosed herein are precipitation surfaces with polymer precipitated thereon.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
CERULEAN PHARMA INC161 FIRST STREET CAMBRIDGE MA 02142

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crawford, Thomas C Essex, US 49 238
Ramstack, J Michael Lunenberg, US 69 1531

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 21, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00