Hydrogel tissue adhesive formed from aminated polysaccharide and aldehyde-functionalized multi-arm polyether
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United States of America Patent
Stats
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Jun 2, 2015
Grant Date -
Sep 15, 2011
app pub date -
Aug 31, 2009
filing date -
Nov 19, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hydrogel tissue adhesive formed by reacting an aminated polysaccharide with a water-dispersible, aldehyde-functionalized multi-arm polyether is described. The hydrogel tissue adhesive may be useful as a general tissue adhesive and sealant for medical and veterinary applications such as wound closure, supplementing or replacing sutures or staples in internal surgical procedures such as intestinal anastomosis and vascular anastomosis, tissue repair, ophthalmic procedures, drug delivery, and to prevent post-surgical adhesions. Additionally, due to the presence of the aminated polysaccharide, the hydrogel tissue adhesive may also promote wound healing and blood coagulation, and provide antimicrobial properties.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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EP | B1 | EP2349357 | Aug 31, 2009 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
Patent | HYDROGEL TISSUE ADHESIVE FORMED FROM AMINATED POLYSACCHARIDE AND ALDEHYDE-FUNCTIONALIZED MULTI-ARM POLYETHER | Oct 03, 2012 | |||
WO | A2 | WO2010059279 | Aug 31, 2009 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITHOUT INTERNATIONAL SEARCH REPORT or INTERNATIONAL APPLICATION PUBLISHED WITH DECLARATION UNDER ARTICLE 17 (2) (A) | HYDROGEL TISSUE ADHESIVE FORMED FROM AMINATED POLYSACCHARIDE AND ALDEHYDE-FUNCTIONALIZED MULTI-ARM POLYETHER | May 27, 2010 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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ACTAMAX SURGICAL MATERIALS LLC | 2810 7TH STREET BERKELEY CA 94710 |
International Classification(s)

- 2009 Application Filing Year
- A61K Class
- 10313 Applications Filed
- 6747 Patents Issued To-Date
- 65.43 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Lu, Helen S M | Wallingford, US | 42 | 365 |
# of filed Patents : 42 Total Citations : 365 | |||
Shuey, Steven Willis | Chadds Ford, US | 3 | 20 |
# of filed Patents : 3 Total Citations : 20 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- A61K Class
- 31.06 % this patent is cited more than
- 10 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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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 2, 2026 |
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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Jul 10, 2023 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jul 10, 2023 | 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: LARGE ENTITY |
Jun 02, 2023 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 02, 2023 |
Jan 23, 2023 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 15, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jun 02, 2015 | I | Issuance | |
May 13, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 15, 2011 | P | Published | |
Mar 22, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:E.I. DU PONT DE NEMOURS AND COMPANY;REEL/FRAME:032345/0850 Owner name: ACTAMAX SURGICAL MATERIALS, LLC, CALIFORNIA Effective Date: Mar 22, 2011 |
Aug 31, 2009 | F | Filing | |
Nov 19, 2008 | PD | Priority Date |

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