Purification systems and methods
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 3, 2018
Issued Date -
N/A
app pub date -
Dec 28, 2016
filing date -
Feb 10, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of preparing hydrogel particles includes applying a solution including a plurality of hydrogel particles to a stir cell. A retentate side of a filter defines a lower surface of the stir cell. The filter has the retentate side and a permeate side. The method further includes, while stirring the solution within the stir cell, dispensing a buffer solution at a first flow rate to the stir cell and drawing a permeate from the permeate side of the filter using a pump at a second flow rate, the permeate including a subset of the plurality of hydrogel particles.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LIFE TECHNOLOGIES CORPORATION | 5823 NEWTON DRIVE CARLSBAD CA 92008 |
International Classification(s)

- 2016 Application Filing Year
- C08J Class
- 2510 Applications Filed
- 1585 Patents Issued To-Date
- 63.15 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hinz, Wolfgang | Killingworth, US | 178 | 16334 |
# of filed Patents : 178 Total Citations : 16334 | |||
Jones, Ryan | New Haven, US | 78 | 1360 |
# of filed Patents : 78 Total Citations : 1360 | |||
Light, David | Branford, US | 91 | 1509 |
# of filed Patents : 91 Total Citations : 1509 |
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Patent Citation Ranking
- 0 Citation Count
- C08J Class
- 0 % this patent is cited more than
- 7 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 3, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 3, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Nov 18, 2019 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Nov 18, 2019 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: MICROENTITY |
Oct 11, 2019 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 11, 2019 |
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Mar 30, 2015 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 03, 2014 | FEPP | FEE PAYMENT PROCEDURE | free format text: PATENT HOLDER CLAIMS MICRO ENTITY STATUS, ENTITY STATUS SET TO MICRO (ORIGINAL EVENT CODE: STOM); ENTITY STATUS OF PATENT OWNER: MICROENTITY |
Oct 11, 2011 | I | Issuance | |
Sep 21, 2011 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 23, 2010 | P | Published | |
Jun 18, 2009 | F | Filing | |
Jun 19, 2008 | PD | Priority Date |

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