Method and apparatus for the submerged growth of cell cultures
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 7, 1988
Grant Date -
N/A
app pub date -
Nov 16, 1981
filing date -
Nov 18, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method and apparatus for the submersed growth of human and animal cell cultures, the cell growth container is provided with a centrally disposed permeator, which is formed simultaneously as conduit tube and reactor, and is provided on both sides with gas-permeable membranes. A gas of defined composition is led through the hollow porous support body of the permeator as fresh gas on one side, and led away on the other side as waste gas. In this manner the gas delivers oxygen across the membrane and receives carbon dioxide. The nutrient substrate and the tissue cells are held in suspension by means of a stirrer provided in the interior of the permeator. Foam problems do not occur, since no gas bubbles can enter into the medium.
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 | |
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CHEMAP AG | CH-8604 VOLKETSWIL |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bondi, Henry S | Mannedorf, CH | 1 | 65 |
# of filed Patents : 1 Total Citations : 65 | |||
Karrer, Daniel | Uetikon a/See, CH | 3 | 145 |
# of filed Patents : 3 Total Citations : 145 |
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Patent Citation Ranking
- 65 Citation Count
- C12N Class
- 0 % this patent is cited more than
- 37 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 07, 2011 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 09, 2011 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 09, 2011 |
Oct 09, 2011 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 16, 2011 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 05, 2007 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 09, 2007 | I | Issuance | |
Feb 28, 2003 | AS | ASSIGNMENT | free format text: THE US GUARANTEE AND COLLATERAL AGREEMENT;ASSIGNOR:TRW AUTOMOTIVE U.S. LLC;REEL/FRAME:014022/0720 Owner name: JPMORGAN CHASE BANK, NEW YORK Effective Date: Feb 28, 2003 |
Feb 01, 2000 | F | Filing | |
Feb 01, 2000 | PD | Priority Date | |
Jan 31, 2000 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MCCURDY, ROGER A.;REEL/FRAME:010548/0647 Owner name: TRW INC., OHIO Effective Date: Jan 31, 2000 |

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