The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4822361 | Tubular prosthesis having a composite structure A tubular prosthesis having a composite structure comprising (i) tubular polytetrafluoroethylene having a microfibrous structure comprising small nodes interconnected with fibrils and (ii) materials which can be absorbed by a living body wherein (a) said ... | 04/18/1989 |
| 4661111 | Polypeptide A polypeptide having the cell-attaching activity of fibronectin. The polypeptide has 108 amino acid residues and the formula: H-Ile-Gly-Gln-Gln-Ser-Thr-Val-Ser-Asp-Val-Pro-Arg-Asp-Leu-Glu-Val-Val-Ala- Ala-Thr-Pro-Thr-Ser-Leu-Leu-Ile-Ser-Trp-Asp-Ala-Pro-Ala... | 04/28/1987 |
| 4614517 | Tetrapeptide The peptide X-Arg-Gly-Asp-Ser-Y wherein X is H or at least one amino acid and Y is OH or at least one amino acid having the same cell-attachment activity as fibronectin.... | 09/30/1986 |
| 4589882 | Enzymatically crosslinked bioelastomers A method of repairing a natural elastic system in a human or animal body, which comprises replacing a damaged portion of the system with a shaped artificial elastomeric copolymer comprising an elastomeric component selected from the group consisting of te... | 05/20/1986 |
| 4578079 | Tetrapeptide The peptide X-Arg-Gly-Asp-R-Y wherein X is H or at least one amino acid and Y is OH or at least one amino acid, and R is an amino acid selected from Thr or Cys, or other amino acid, having the same cell-attachment activity as fibronectin and the peptide X... | 03/25/1986 |
| 4522753 | Method for preserving porosity in porous materials A method for preserving the porosity of porous materials is disclosed. In this method, the porous material is subjected to elevated temperature and vacuum conditions to thereby produce a dimensionally-stable, non-collapsible porous material.... | 06/11/1985 |
| 4517686 | Polypeptide A polypeptide having the cell-attaching activity of fibronectin. The polypeptide has 108 amino acid residues and the formula: H-Ile-Gly-Gln-Gln-Ser-Thr-Val-Ser-Asp-Val-Pro-Arg-Asp-Leu-Glu-Val-Val-Ala- Ala-Thr-Pro-Thr-Ser-Leu-Leu-Ile-Ser-Trp-Asp-Ala-Pro-Ala... | 05/21/1985 |
| 4378435 | Process for providing enzyme activity to a solid surface A process for providing enzyme activity to the surface of an article is described, comprising forming a film on the surface of the article, said film comprising an acid anhydride group-containing polymer and a polyol, wherein the acid anhydride groups are... | 03/29/1983 |
| 4187852 | Synthetic elastomeric insoluble cross-linked polypentapeptide An insoluble cross-linked polypentapeptide is totally synthesized by preparing two modified linear polypentapeptides patterned on the polypentapeptide from the pentapeptide (Val1 -Pro2 -Gly3 -Val4 -Gly5 | 02/12/1980 |
| 4167045 | Cardiac and vascular prostheses A prosthesis suitable for implantation in a bloody environment. The prosthesis includes a surface material adapted for exhibiting a regular and periodic surface charge characteristic in the bloody environment. A prosthesis means supports the surface mater... | 09/11/1979 |