LH

Leo Hakkinen

TO Tamrock Oy: 4 patents #1 of 42Top 3%
OA Oy Tampella Ab: 3 patents #16 of 124Top 15%
SO Sandvik Tamrock Oy: 1 patents #22 of 57Top 40%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Tampere, FI: #164 of 2,125 inventorsTop 8%
Overall (All Time): #524,511 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
6615932 Arrangement in rock drilling apparatus Tapani Huhdanmaki 2003-09-09
6616244 Method and arrangement for determining position of unmanned mining vehicles 2003-09-09
6015112 Arrangement for leading flexible elements to a rock drill, and a hose reel structure Timo Laitinen 2000-01-18
6009957 Arrangement in a feed beam of a rock drill Mauri Esko, Heikki Jantunen, Timo Laitinen 2000-01-04
5896936 Arrangement for controlling boom for rock drilling unit Jaakko Niemi, Pauli Lemmetty 1999-04-27
5884712 Arrangement for a telescope feeder of a rock-drilling machine 1999-03-23
5297642 Apparatus for storing drill rods Pauli Rajakallio, Jouko Kaakkurivaara, Pekka Koskelo, Markku Launiemi 1994-03-29
4735539 Apparatus for handling sheets or the like Juha Johannes Vainio 1988-04-05
4729279 Device for transport of cannon or such like Heikki Collanus, Seppo Nikula, Ari Kanervo 1988-03-08
4591005 Drill rod opening device for sectional-rod drilling equipment Ossi Paivalainen 1986-05-27