Inventor
HANSEN DAVID L
US25 patents
⚠️ This page may combine multiple inventors who share the name “HANSEN DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LANDFILL SERVICE CORP
7 patentsUS5161915ANov 10, 1992
Synthetic cover for waste piles
LANDFILL SERVICE CORP53 citations96
US5525009AJun 11, 1996
Synthetic bulk material cover and method of using the same
LANDFILL SERVICE CORP36 citations92
US5385429AJan 31, 1995
Synthetic cover for waste
LANDFILL SERVICE CORP26 citations92
US5275508AJan 4, 1994
Synthetic cover for waste
LANDFILL SERVICE CORP32 citations92
US5265979ANov 30, 1993
High efficiency waste placement system for municipal landfills
LANDFILL SERVICE CORP40 citations92
US7544243B2Jun 9, 2009
Bulk material cover compositions and methods for applying
LANDFILL SERVICE CORP21 citations89
US7249607B2Jul 31, 2007
Landfill conduit servicing systems and methods for servicing landfill conduits
LANDFILL SERVICE CORP9 citations71
HANSEN DAVID L
6 patentsUS4917733AApr 17, 1990
Pozzolanic mixture for stabilizing landfill leachate
HANSEN DAVID L37 citations92
USD578840SOct 21, 2008
Electrically heated ice cream scoop
HANSEN DAVID L7 citations65
USD893268SAug 18, 2020
Electrically heated ice cream scoop
HANSEN DAVID L1 citations62
US8946324B2Feb 3, 2015
Bulk material cover compositions and methods of applying
HANSEN DAVID L3 citations62
US9579699B2Feb 28, 2017
Bulk material cover compositions and methods of applying
HANSEN DAVID L0 citations51
USD281198SOct 29, 1985
Aquatic exercise tank
HANSEN DAVID L1 citations51
LANDFILL TECHNOLOGIES INC
4 patentsUS5957681ASep 28, 1999
Self ignited landfill gas vent flare and flarehead
LANDFILL TECHNOLOGIES INC14 citations73
US5636940AJun 10, 1997
Apparatus and method for gas and/or liquid exchange between an area outside and an area inside a bulk material pile
LANDFILL TECHNOLOGIES INC7 citations73
US5324138AJun 28, 1994
In situ process for increasing the capacity of a municipal solid waste landfill
LANDFILL TECHNOLOGIES INC14 citations73
US5984668ANov 16, 1999
Sparking device for promoting avoidance of short-circuiting
LANDFILL TECHNOLOGIES INC9 citations65