IP Library Granted Patent US 11,377,559
Granted Patent B2
US 11,377,559 · App. 17/366,550 · Granted Jul 5, 2022

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

Inventors: Ingvar Helgason (San Jose, 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
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,377,559
App. No.
17/366,550
Granted
Jul 5, 2022
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 (22)

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

1) forming an artificial dermal layer comprising a fibroblast on a scaffold, wherein said scaffold comprises a bioabsorbable synthetic polymer, a cellulose, a cotton, an acetate, an acrylic, a fiber, a linen, a nylon, a rayon, a velvet, a modacrylic, an olefin polyester, a saran, a vinyon, a wool, a jute, a hemp, a bamboo, a flax, or any combination thereof;

2) removing at least a portion of a cell layer from said artificial dermal layer; and

3) tanning at least a portion of said artificial dermal layer to generate said tanned synthetic leather.

2. The method of claim 1 , wherein said scaffold comprises a fiber.

3. The method of claim 2 , wherein said fiber comprises a latex, a vegetable, a polyamide, a modified cellulose, or any combination thereof.

4. The method of claim 1 , wherein said scaffold comprises a cellulose, wherein said cellulose comprises rayon, viscose, acetate, rayon acetate, or any combination thereof.

5. The method of claim 1 , wherein said artificial dermal layer further comprises collagen.

6. The method of claim 1 , further comprising forming said 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 or a whip.

7. The method of claim 1 , wherein said fibroblast is differentiated from a stem cell.

8. The method of claim 1 , wherein said fibroblast produces collagen.

9. The method of claim 1 , wherein said scaffold comprises bamboo.

10. The method of claim 1 , wherein said scaffold comprises cellulose.

11. The method of claim 1 , wherein said artificial dermal layer further comprises an artificial epidermal layer.

12. The method of claim 11 , wherein said artificial epidermal layer further comprises a keratinocyte.

13. The method of claim 12 , wherein said keratinocyte is a pluripotent stem cell-differentiated keratinocyte.

14. The method of claim 11 , wherein said artificial epidermal layer is layered on said dermal layer thereby forming a layered structure.

15. The method of claim 14 , wherein said layered structure further comprises a melanocyte.

16. The method of claim 11 , wherein said artificial dermal layer further comprises a basement membrane substitute.

17. The method of claim 16 , wherein said basement membrane substitute is between said artificial epidermal layer and said artificial dermal layer.

18. The method of claim 16 , wherein said basement membrane substitute comprises a dried acellular amniotic membrane.

19. The method of claim 11 , wherein said artificial epidermal layer further comprises collagen.

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 Nov 2, 2021
From: HELGASON, INGVAR
To: VITROLABS INC.
Reel/Frame 057994/0120 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2021
From: ILIC, DUSKO
To: KING'S COLLEGE LONDON
Reel/Frame 058711/0662 →
Continuity (5)
Continuation 16892839 · Jun 4, 2020
Continuation 16299734 · Mar 12, 2019
Continuation 15493083 · Apr 20, 2017
Provisional Application 62325819 · Apr 21, 2016
Related Publication 20220064451A1 · Mar 3, 2022
Cited By (1)
US 12,410,317