U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 162/175 - Carbohydrate


Subclass of Class 162 - Paper making and fiber liberation
Definition: Processes and products in which the additive is a carbohydrate.
No. of patents: 445
Last issue date: 04/03/2012


                    12  
NumberTitleIssue Date
3962159Graft copolymers of a polyamideamine substrate and starch, and method of making same
Graft copolymers are prepared by condensing a polyamideamine substrate with starch under controlled reaction conditions. Aqueous solutions of the resulting graft copolymers function as superior wet strength additives in the paper making process....
06/08/1976
3953283Paperboard having improved oil resistance
Paperboard having improved resistance to oils is obtained by incorporating in the pulp suspension before paper formation a mixture of a cationically active material, a fatty acid salt and a bis-perflourosulfonamino alkyl phosphate....
04/27/1976
3941902Method of making surface-treated paper
Surface-treated paper in the form of a continuous web is made by first roughening a base paper which serves as a starting material on the sides to be treated. The roughened web is then passed over and in direct contact with a discharge slot from a contain...
03/02/1976
3940519Process for sizing cellulose fibres
The present invention relates to a process for sizing cellulose fibers or cellulose fiber-containing materials by using modified starch containing hydrophobic groups having the general formula ##EQU1## wherein R1 is an organic, hydrophobic...
02/24/1976
3931069Dispersion for sizing cellulose fibres and use thereof
Ketene dimer dispersion containing cationic dispersing agent and alkyl hydroxyalkyl cellulse and use thereof to size cellulose fibres....
01/06/1976
                    12  
 
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