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Class Information
Number: 256/12.5
Name: Fences > Driftage control
Description: Barriers designed to regulate wind and air currents so that driftage of snow or sand will be controlled.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8678709 Security net on water or on the ground Mar. 25, 2014
8465231 Graduated silt fence Jun. 18, 2013
8387546 Fence to capture windblown particles Mar. 5, 2013
8079571 Shock-absorbing fence Dec. 20, 2011
RE42695 Reinforced silt retention sheet Sep. 13, 2011
7857291 Flexible fence assembly Dec. 28, 2010
7841378 Ballasted wind shielding system and method Nov. 30, 2010
7780148 Vortex generating sand and snow fence Aug. 24, 2010
7736097 Environmental barrier device Jun. 15, 2010
7556243 High tension cable to metal beam guide fence transition Jul. 7, 2009
7543801 Self dissipating snow abatement system Jun. 9, 2009
7487580 Method of forming a self dissipating snow abatement system Feb. 10, 2009
7465129 Reinforced silt retention sheet Dec. 16, 2008
7384024 Apparatus and method for supporting roll-up safety fencing Jun. 10, 2008
7234283 Knot of a retaining net Jun. 26, 2007
7188825 Catchment net, especially for rockfall blocking Mar. 13, 2007
7097385 Tetrapod control device and method for stabilizing, depositing and retaining windblown particles Aug. 29, 2006
7048474 Apparatus and method for efficiently fabricating, dismantling and storing a porous tubular windblown particle control device May. 23, 2006
7044449 Apparatus and method for supporting roll-up safety fencing May. 16, 2006
7036798 Mobile barrier to control litter and wind May. 2, 2006
6986624 Porous tubular device and method for controlling windblown particle stabilization deposition and retention Jan. 17, 2006
6926471 Protective barrier, in particular for mountainous places Aug. 9, 2005
6890367 Dynamic sand drift barrier May. 10, 2005
6843616 Erosion control panels Jan. 18, 2005
6824332 Silt fence flat pack and production method Nov. 30, 2004
6796747 Apparatus for installing a silt fence and support posts Sep. 28, 2004
6782668 Roof-screen system Aug. 31, 2004
6612550 Fence post Sep. 2, 2003
6592103 Catchment net for rockfall catchment systems or the like Jul. 15, 2003
6581875 Anchoring systems for aircraft arresting nets Jun. 24, 2003
6558075 Permanent and semi-permanent groyne structures and method for shoreline and land mass reclamation May. 6, 2003
6523300 Slope guard Feb. 25, 2003
6517294 Apparatus for installing a silt fence Feb. 11, 2003
6491474 Walking sand snare and method for beach renourishment Dec. 10, 2002
6481926 Adjustable porous structures and method for shoreline and land mass reclamation Nov. 19, 2002
6390730 Protective elements, devices comprising said elements and method for protecting a zone against floods and avalanches May. 21, 2002
6382597 Method and device for preventing avalanches, snow slides or the like May. 7, 2002
6357184 Snow guard system having a flag type attachment Mar. 19, 2002
6279858 Woven wire netting for protection against rock falls or for securing a top layer of soil, and method and device for producing same Aug. 28, 2001
6223477 Device to secure snow guard to roof using a wedge May. 1, 2001
6217007 Fence system Apr. 17, 2001
6158923 Method and apparatus for installing silt fence Dec. 12, 2000
6149135 Portable pole systems for supporting fencing, game nets, rope line dividers, and for landscaping uses, and the like Nov. 21, 2000
6053665 Silt fence fabric, apparatus and method Apr. 25, 2000
6053479 Self-aligning vortex snow fence Apr. 25, 2000
6015244 Wind directing sea wall Jan. 18, 2000
5996972 Wire rope net for protection fences against falling rocks, avalanches and felling Dec. 7, 1999
5961099 Safety net system for debris and mud slides Oct. 5, 1999
5944443 Adjustable porous groynes and method for shoreline reclamation Aug. 31, 1999
5888020 Sub-tidal platform Mar. 30, 1999

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