MyPatentAssets — Patent Search by Number: 4,925,432
Easily access free patent information, as well as additional paid-for information, in the ultimate patent data dashboard by searching by the patent number 4,925,432, which is a patented belt-type continuously variable transmission and engine speed control device therefore.Patent Ranking — The Patent Rank Badge
Patent Rank evaluates individual patents based on several criteria, computes their value, and then delivers a Patent Rank Badge, which is unique to Patent Rank and is a feature no other online patent services offer.Browse Firms
Browse patents by selecting the first letter of the firm's namePatent Rank's Team
Provides brief descriptions of the individuals that are responsible and credited for making Patent Rank happen; it includes the Founder, CEO, Marketing Manager, and Graphic Designer.Patent for concrete screw
Patent number 3,902,399 was created in 1975 for an invention of a screw that could be used in concrete.