IP Library › Granted Patent US 6,960,249
Granted Patent B2
US 6,960,249 · App. 10/607,023 · Granted Nov 1, 2005

Tetracalcium phosphate (TTCP) having calcium phosphate whisker on surface

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Quick Facts
Patent No.
US 6,960,249
App. No.
10/607,023
Granted
Nov 1, 2005
Kind
B2
Abstract

A tetracalcium phosphate (TTCP) particle for use in preparing a fast-setting, bioresorbable calcium phosphate cement is disclosed. The TTCP particle has a basic calcium phosphate whiskers or fine crystals on a surface thereof; the basic calcium phosphate whiskers or fine crystals having a Ca/P molar ratio greater than 1.33, and having a length up to about 5000 nm and a width up to about 500 nm.

Claims (5)

1. A tetracalcium phosphate (TTCP) particle comprising a basic calcium phosphate whiskers or fine crystals on a surface of said TTCP particle; said basic calcium phosphate whiskers or fine crystals having a Ca/P molar ratio greater than 1.33, said whiskers or fine crystals having a length up to about 5000 nm and a width up to about 500 nm.

2. The tetracalcium phosphate particle of claim 1 , wherein said basic calcium phosphate whiskers or fine crystals have a Ca/P molar ratio from about 1.35 to about 4.0.

3. The tetracalcium phosphate particle of claim 1 , wherein basic calcium phosphate whiskers or fine crystals have a length from about 1 nm to about 2000 nm and a width from about 1 nm to about 200 nm.

4. The tetracalcium phosphate particle of claim 1 , wherein the basic calcium phosphate whiskers or fine crystals are substantially free of apatite crystal structure.

5. The tetracalcium phosphate particle of claim 1 , wherein basic calcium phosphate whiskers or fine crystals have a TTCP crystal structure.

Assignments (15)
RELEASE OF SECURITY INTEREST Recorded Aug 29, 2022
From: BANKUNITED, N.A.
To: VIVEX BIOLOGICS GROUP, INC.
Reel/Frame 061333/0853 →
SECURITY INTEREST Recorded Aug 4, 2022
From: VIVEX BIOLOGICS GROUP, INC.
To: HERITAGE BANK OF COMMERCE
Reel/Frame 061084/0607 →
RELEASE OF SECURITY INTEREST Recorded Dec 12, 2019
From: HERITAGE BANK OF COMMERCE
To: VIVEX BIOMEDICAL, INC.; UMTB BIOMEDICAL, INC; ADVANCED NUMED TECHNOLOGIES, LTD.; VIVEX BIOMEDICAL INTERNATIONAL, INC.
Reel/Frame 051282/0653 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Dec 11, 2019
From: VIVEX BIOLOGICS GROUP, INC.
To: BANKUNITED, N.A.
Reel/Frame 051260/0064 →
CHANGE OF NAME Recorded Aug 16, 2019
From: VIVEX BIOMEDICAL, INC.
To: VIVEX BIOLOGICS, INC.
Reel/Frame 050079/0179 →
CHANGE OF NAME Recorded Aug 16, 2019
From: VIVEX BIOLOGICS, INC.
To: VIVEX BIOLOGICS GROUP, INC.
Reel/Frame 050079/0225 →
RELEASE OF SECURITY INTEREST Recorded Mar 28, 2017
From: SILICON VALLEY BANK
To: VIVEX BIOMEDICAL, INC.
Reel/Frame 042103/0686 →
SECURITY INTEREST Recorded Feb 22, 2017
From: VIVEX BIOMEDICAL, INC.; UMTB BIOMEDICAL, INC.; ADVANCED NUMED TECHNOLOGIES, LTD.; VIVEX BIOMEDICAL INTERNATIONAL, INC.
To: HERITAGE BANK OF COMMERCE
Reel/Frame 041782/0452 →
SECURITY INTEREST Recorded Jan 5, 2016
From: VIVEX BIOMEDICAL, INC.
To: SILICON VALLEY BANK
Reel/Frame 037413/0089 →
RELEASE OF SECURITY INTEREST Recorded Sep 18, 2014
From: JPMORGAN CHASE BANK, N.A.
To: AMENDIA, INC.
Reel/Frame 033771/0759 →
SECURITY INTEREST Recorded Jun 10, 2014
From: AMENDIA, INC.
To: JP MORGAN CHASE BANK NA
Reel/Frame 033120/0286 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2014
From: AMENDIA, INC.
To: VIVEX BIOMEDICAL, INC.
Reel/Frame 032454/0182 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2012
From: OSTEOTHERAPEUTICS, LLC
To: AMENDIA, INC.
Reel/Frame 028376/0199 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 9, 2004
From: CANA LAB CORPORATION
To: CALCITEC, INC.
Reel/Frame 015548/0403 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2003
From: LIN, JIIN-HUEY CHERN; JU, CHIEN-PING; CHEN, WEN-CHENG; LIN, KUAN-LIANG; WANG, I-CHANG
To: CANA LAB CORPORATION
Reel/Frame 014243/0101 →