Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 5590360 | Apparatus and method for gathering and entering data requirements from multiple users in the building of process models and data models A computer-based apparatus and method for gathering Information for data model and Process model development includes a plurality of terminals on a local area network at which multiple users enter Information in a structured manner in response to an order... | 12/31/1996 |
| 4320741 | Fireplace heater stove A cylindrical wood-burning firebox is surrounded by a cylindrical metal outer shell which together comprise a convection heater stove which fits into any of various sizes of fireplaces with the cylinder axes directed into the fireplace. Room air enters th... | 03/23/1982 |
