IP Library Granted Patent US 11,999,853
Granted Patent B2
US 11,999,853 · App. 18/347,349 · Granted Jun 4, 2024

Engineered skin equivalent, method of manufacture thereof and products derived therefrom

Inventors: Ingvar Helgason (South San Francisco, CA); Dusko Ilic (London, GB)
Assignees: VITROLABS INC; KING'S COLLEGE LONDON
C08L89/06C12N5/0625C12N5/0629C12N5/0698C12N11/02C14C3/02C14C13/00C12N2501/155C12N2501/385C12N2502/091C12N2502/094C12N2502/13C12N2506/45C12N2533/30C12N2533/54
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Quick Facts
Patent No.
US 11,999,853
App. No.
18/347,349
Granted
Jun 4, 2024
Kind
B2
Abstract

Disclosed herein are synthetic leathers, artificial epidermal layers, artificial dermal layers, layered structures, products produced therefrom and methods of producing the same.

Claims (16)

1. A method of forming a tanned synthetic leather, wherein the method comprises:

culturing a fibroblast on a scaffold comprising a cellulose, a modified cellulose, or a combination thereof; and

tanning a collagenous extracellular matrix comprising collagen secreted by the fibroblast to generate the tanned synthetic leather.

2. The method of claim 1 , wherein the cellulose, the modified cellulose, or the combination thereof comprises a rayon.

3. The method of claim 1 , wherein the collagen comprises a type I collagen, a type III collagen, or a combination thereof.

4. The method of claim 1 , wherein the tanning comprises a vegetable tanning, a chrome tanning, an aldehyde tanning, a syntan tanning, a bacterial tanning, or any combination thereof.

5. The method of claim 1 , wherein a thickness of the tanned synthetic leather is about 0.01 mm to about 5 mm.

6. The method of claim 1 , wherein the fibroblast is derived from a mammal or a reptile.

7. The method of claim 1 , further comprising forming the tanned synthetic leather into one or more of a watch strap, a belt, a packaging, a shoe, a boot, a footwear, a glove, a clothing, a luggage, a bag, a clutch, a purse, a backpack, a wallet, a saddle, a harness, a whip, or any combination thereof.

8. A composition comprising a cell layer comprising a fibroblast in contact with a scaffold;

wherein the scaffold comprises a cellulose, a modified cellulose, or a combination thereof; and

wherein the cell layer comprises a collagen.

9. The composition of claim 8 , wherein the composition further comprises an extracellular matrix.

10. The composition of claim 8 , wherein the cellulose, the modified cellulose, or the combination thereof comprises rayon.

11. The composition of claim 8 , wherein the collagen comprise a type I collagen, a type III collagen, or a combination thereof.

12. The composition of claim 8 , wherein the fibroblast is derived from a mammal or a reptile.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2025
From: VITROLABS INC
To: FAIRCRAFT
Reel/Frame 071535/0661 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 7, 2023
From: ILIC, DUSKO
To: KING'S COLLEGE LONDON
Reel/Frame 064509/0012 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 7, 2023
From: HELGASON, INGVAR
To: VITROLABS INC
Reel/Frame 064509/0199 →
Continuity (8)
Continuation 18092816 · Jan 3, 2023
Continuation 17751440 · May 23, 2022
Continuation 17366550 · Jul 2, 2021
Continuation 16892839 · Jun 4, 2020
Continuation 16299734 · Mar 12, 2019
Continuation 15493083 · Apr 20, 2017
Provisional Application 62325819 · Apr 21, 2016
Related Publication 20240010838A1 · Jan 11, 2024