ul.patent-list{
	column-count: 4;
	column-gap: 20px;
	list-style-type: none;
}

@media screen and (max-width: 1200px) {	

}

@media screen and (max-width: 900px) {
	
	ul.patent-list{
		column-count: 3;
	}
	
}

@media screen and (max-width: 640px) {
	
	ul.patent-list{
		column-count: 2;
	}
	
}

ul.patent-list li.model{
	break-inside: avoid-column;
	margin-left: 0px;
	font-weight: 700;
	padding-bottom: 20px;
}

ul.patent-list li ul{
	list-style-type: none;
	
}

ul.patent-list li.patent{
	font-weight: 400;
}