\makeatletter

\newcommand*{\gradeType}[1]{\gdef\@gradeType{#1}}
\newcommand*{\yearAndGroup}[1]{\gdef\@yearAndGroup{#1}}
\newcommand*{\supervisor}[1]{\gdef\@supervisor{#1}}
\newcommand*{\professorship}[1]{\gdef\@professorship{#1}}
\newcommand*{\submitDate}[1]{\gdef\@submitDate{#1}}

\renewcommand*{\maketitle}{
	\begin{titlepage}
		\newgeometry{left=2.5cm,right=2.5cm,top=3.5cm,bottom=2.5cm}
		\begin{center}
			\vfill
			{\textsc{\large Semmelweis Universität\\ \vskip 0.25cm Fakultät für Humanmedizin}}
			\vskip 0.50cm
			\includegraphics[scale=0.35]{resources/images/logo-semmelweis.pdf}\\
			\vskip 0.50cm
			{\textsc{\large Diplomarbeit zur Erlangung des akademischen Grades}}
			\vskip 0.25cm
			{\textsc{\large \textbf{\@gradeType}}\par}
			\vskip 1.5cm
			{\textsc{\LARGE \textbf{\@title}}\par}
			\vskip 1cm
			{\large \textit{\@author}}\\
			{\textsc{\large{\@yearAndGroup}}\par}
			\vskip 3.50cm
			{\textsc{Betreuung:}}\\
			{\textsc{\@supervisor}}\\
			{\textsc{\@professorship}}
			\vskip 1cm
			{\textsc{\@submitDate}}
			\vfill
		\end{center}
		\restoregeometry
	\end{titlepage}
}
\makeatother