Searching US Patent Collection...

	PAT. NO.		Title
1	10,464,065		Nucleic acid purification
2	6,712,572		Expansion dowel
3	6,589,037		Device for covering a core of a foothold with synthetic resin
4	6,302,618		Foothold
5	6,125,967		Foothold
6	6,068,083		Foothold
7	6,062,340		Emergency tree and height descender
8	6,029,772		Ladder provided with reflectors
9	5,967,256		Foothold
10	5,772,358		Foothold
11	5,752,579		Foothold
12	5,386,784		Railroad car hand hold assembly
13	5,098,237		Arrangement for retaining an article to a structural surface
14	4,869,342		Drive in manhole step
15	4,771,861		Encapsulated anchor rung and process for making same