The United States Constitution gives Congress the power "to promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries". Congress first exercised this power in 1790 when the first patent act was enacted. During the following years, several new patent laws were passed and a major revision of the patent act was made in 1952. The patent law today attempts to encourage and reward those who create something new.

Put the number of invention or book
next to its inventor or author in the PATENT OFFICE.

1."Wizard of Oz"________________12."Cat in hat"_______________
2.Cylinder lock__________________14.Lightening rod_____________
4.Phonograph____________________15.Milk condensation_____________
5.Pistol Revolver________________16.Polio Vaccine________________
6.Arc searchlight________________17.Carpet Sweeper_______________
7.Magnetic telegraph____________18."Little Women________________
8."Encyclopedia Brown"__________19.Telephone__________________
9.Wireless telegraph_____________20."Tom Sawyer"________________
10.Vulcanized rubber_____________21."Amelia Bedelia"_____________
11."Little House on Prarie"__________

Bissel__________Twain_________Yale_________Edison__________
Seuss__________Baum__________Morse__________Bell__________
Alcott_________Marconi__________Sobol__________Colt_________
Pullman__________Franklin__________Salk__________
Borden__________Dupont__________Wilder__________
Sperry__________Goodyear__________Parish__________

Bonus: Write the year of each invention

©2002