KEYSTONE RETAINING WALL SYSTEMS LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
2501 BUILDING MATERIALS765
 
 
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 303
 
 
 
E04C STRUCTURAL ELEMENTS; BUILDING MATERIALS 244
 
 
 
E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 1829
 
 
 
E01C CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR 1417
 
 
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 919
 
 
 
E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS 819
 
 
 
B28D WORKING STONE OR STONE-LIKE MATERIALS 616
 
 
 
A01G HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS, OR SEAWEED; FORESTRY; WATERING 428
 
 
 
B44C PRODUCING DECORATIVE EFFECTS 331

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0167,086 PERMEABLE SURFACE COVERING UNITS AND PERMEABLE SURFACE COVERINGFeb 27, 17Jun 15, 17[E01C, B28B]
2017/0121,974 RETAINING WALL CONTAINING WALL BLOCKS WITH WEIGHT BEARING PADSJan 12, 17May 04, 17[E04C, E02D, E04B]
2017/0051,458 TWISTED BLOCKOct 03, 16Feb 23, 17[A01G, E04C, E01C, E04B]
2016/0069,078 WALL BLOCKS, VENEER PANELS FOR WALL BLOCKS AND METHOD OF CONSTRUCTING WALLSNov 18, 15Mar 10, 16[E04C, E04B, E02D, E04F]
2015/0097,312 BLOCK, BLOCK SYSTEM AND METHOD OF MAKING A BLOCKSep 26, 14Apr 09, 15[B28B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D812781 Wall blockJul 21, 16Mar 13, 18[2501]
9903088 Blocks and block connectors, block systems and methods of making blocksFeb 17, 16Feb 27, 18[E04C, E02D]
D810322 Landscaping blockOct 25, 16Feb 13, 18[2501]
D809673 Landscaping blockNov 15, 16Feb 06, 18[2501]
9832934 Edger having connection surfacesFeb 24, 16Dec 05, 17[A01G]
9834902 Blocks, block systems and methods of making blocksFeb 23, 16Dec 05, 17[E04C, E04B, E02D, B28B]
9745742 Irregular tessellated building unitsJul 28, 16Aug 29, 17[B44C, B44F, E04C, E01C, E02D, E04B, E04F]
9739028 Irregular trapezoidal building unit and wall structure including sameMar 11, 14Aug 22, 17[E02D]
9732523 Connection surface for a structural unit and method of making sameJul 22, 16Aug 15, 17[E01F, E04C, E01C, E02D]
D791345 Landscaping blockJul 22, 15Jul 04, 17[2501]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0132,057 CONNECTION SURFACE FOR A STRUCTURAL UNITAbandonedJan 22, 15May 14, 15[E01C]
2015/0042,015 RETAINING WALL BLOCKAbandonedOct 23, 14Feb 12, 15[B28B]
2014/0259,902 LANDSCAPE EDGING SYSTEMAbandonedMar 15, 13Sep 18, 14[A01G]
2014/0169,878 PERMEABLE SURFACE COVERING UNITS AND PERMEABLE SURFACE COVERINGAbandonedDec 13, 13Jun 19, 14[E01C]
2014/0150,368 WALL BLOCKS, VENEER PANELS FOR WALL BLOCKS AND METHOD OF CONSTRUCTING WALLSAbandonedFeb 04, 14Jun 05, 14[E04C, E04B]
2014/0140,766 CONNECTION SURFACE FOR A STRUCTURAL UNITAbandonedNov 15, 13May 22, 14[E01C]
2014/0048,964 FLOATING CUT-OFF BAR FOR A MOLD BOXAbandonedOct 28, 13Feb 20, 14[B28B]
2014/0042,669 FLOATING CUT-OFF BAR AND METHOD OF USE THEREOFAbandonedOct 22, 13Feb 13, 14[B29C]
2013/0276,401 WALL BLOCK AND WALL BLOCK SYSTEMAbandonedApr 17, 13Oct 24, 13[E02D]
8562327 Floating cut-off bar and method of use thereofExpiredFeb 16, 12Oct 22, 13[B28B]
8464491 Column block systemExpiredNov 23, 09Jun 18, 13[E04C]
2013/0149,043 RETAINING WALL CONTAINING WALL BLOCKS WITH WEIGHT BEARING PADSAbandonedFeb 05, 13Jun 13, 13[E02D]
2012/0291,391 VENEERS FOR WALLS, RETAINING WALLS, RETAINING WALL BLOCKS, AND THE LIKEAbandonedAug 01, 12Nov 22, 12[E04B]
2012/0279,163 RETAINING WALL BLOCKAbandonedJul 19, 12Nov 08, 12[E04C, E02D]
2011/0217,127 RETAINING WALL BLOCK SYSTEMAbandonedMar 01, 11Sep 08, 11[E04C, E02D]
2011/0179,737 WALL BLOCK AND WALL BLOCK SYSTEM FOR CONSTRUCTING WALLSAbandonedApr 07, 11Jul 28, 11[E04C]
2011/0179,747 RETAINING WALL BLOCKAbandonedApr 07, 11Jul 28, 11[E02D, E04B]
2011/0107,707 RETAINING WALL BLOCKAbandonedJan 17, 11May 12, 11[E04C]
2010/0310,695 FLOATING CUT-OFF BAR AND METHOD OF USE THEREOFAbandonedOct 16, 09Dec 09, 10[B29C]
7641178 Column block systemExpiredApr 28, 05Jan 05, 10[E04C, E04H]

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