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Class Information
Number: 434/279
Name: Education and demonstration > Science > Molecular model or display having discrete element representing atom or radical > Model having helical chain of elements (e.g., dna model, etc.)
Description: Subject matter including a helical string of atom representing elements, e.g., a model of a molecule of deoxyribo nucleic acid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8620665 |
Method and system of speech evaluation |
Dec. 31, 2013 |
| 7419325 |
Tube assembling device |
Sep. 2, 2008 |
| 6866514 |
Gel electrophoresis training aid and training kit |
Mar. 15, 2005 |
| 6652285 |
System which can reversibly reproduce itself |
Nov. 25, 2003 |
| 6343937 |
Block |
Feb. 5, 2002 |
| 6036497 |
Dynamic model of the DNA molecule |
Mar. 14, 2000 |
| 5110297 |
Assembly system for demonstrating chemical structures |
May. 5, 1992 |
| 4892500 |
Versatile network of multiple spout balloons |
Jan. 9, 1990 |
| 4812128 |
Three-dimensional molecular model |
Mar. 14, 1989 |
| 4507089 |
Mechanical support module for nucleic acid |
Mar. 26, 1985 |
| 4378218 |
Protein molecule model |
Mar. 29, 1983 |
| 4184271 |
Molecular model |
Jan. 22, 1980 |
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