Life chances such additional factors as social mobility and social equality. Other factors include those related to one's socioeconomic status, such as gender, race, and ethnicity. While some of those factors, like age, race or gender, are random, Weber stressed the link between life chances and the non-random elements of the three-component theory of stratification – how social class, social status and political affiliation affect each individual's life. In other words, individuals in certain groups have in common a specific causal component of their life chances: they are in similar situation, which tends to imply a similar outcome to their actions. Weber
Admission to the bar in the United States or patent agents can prosecute patent applications in the USPTO, passing the patent bar is not necessary to advise clients on patent infringement, to litigate patent issues in court, or to prosecute trademark applications. A J.D. degree is not required to sit for the patent bar. Lawyers who pass the patent bar exam may refer to themselves as a patent attorney (rules of legal ethics prohibit lawyers from using the title "patent attorney" unless they are admitted to practice before the USPTO). While patent lawyers have a relevant four-year degree and many have graduate technical degrees, patent litigation attorneys do