Poly-l-lactic acid (PLLA) microtube array membrane-immobilized yeast cells for bioethanol fermentation
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United States of America Patent
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Sep 12, 2017
Issued Date -
N/A
app pub date -
Dec 14, 2015
filing date -
Dec 14, 2015
priority date (Note) -
In Force
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Abstract
The invention uses a highly porous MTAM to immobilize yeast cells for bioethanol fermentation, a first in bioethanol production. The invention also optimizes the conditions to prepare MTAM-immobilized cells and evaluates their potential for batch bioethanol fermentation.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NATIONAL TAIWAN OCEAN UNIVERSITY | KEELUNG 20224 | |
TAIPEI MEDICAL UNIVERSITY | TAIPEI CITY 110 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Chen, Chien Chung | Taipei, TW | 25 | 98 |
# of filed Patents : 25 Total Citations : 98 | |||
Lin, Hong-Ting | Keelung, TW | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 |
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Patent Citation Ranking
- 1 Citation Count
- C12P Class
- 51.56 % this patent is cited more than
- 8 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 | Mar 12, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 12, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
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Legal Events
Date | Code | Event | Description |
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Aug 13, 2018 | 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: SMALL ENTITY |
Aug 13, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 26, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.) |
Jul 15, 2014 | I | Issuance | |
Jul 05, 2012 | P | Published | |
Mar 07, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GIUDICEANDREA, FEDERICO;MATTHEWS, PETER;REEL/FRAME:027838/0155 Owner name: MICROTEC S.R.L., ITALY Effective Date: Mar 07, 2012 |
Jul 15, 2009 | F | Filing | |
Jul 15, 2009 | PD | Priority Date |

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