Class E01C : CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
Subclass 5/04: Pavings made of prefabricated single units (specially adapted for playgrounds or sports grounds E01C 13/04, for footpaths, sidewalks or cycle tracks E01C 15/00; making artificial stones C04B; building stones E04C; flooring E04F) made of bricks
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11753776 | Interlocking paving brick assembly | Apr 29, 21 | Sep 12, 23 | Jing Si Pureland Co., Ltd. |
| 10760224 | Twisted block | Jun 24, 19 | Sep 01, 20 | KEYSTONE RETAINING WALL SYSTEMS LLC |
| 10626561 | Permeable joint for paver and structural system therefor | Mar 14, 19 | Apr 21, 20 | Riccobene Designs LLC |
| 10329717 | Twisted block | Oct 03, 16 | Jun 25, 19 | Keystone Retaining Wall Systems LLC |
| 10233595 | Hard pavement construction method for natural groundwater recharge | Sep 07, 17 | Mar 19, 19 | Not available |
| 9963834 | Monolithic paver | Jul 06, 17 | May 08, 18 | Gilliam Harris Engineering, LLC |
| 9732523 | Connection surface for a structural unit and method of making same | Jul 22, 16 | Aug 15, 17 | KEYSTONE RETAINING WALL SYSTEMS LLC |
| 9644326 | Monolithic paver | Jul 27, 16 | May 09, 17 | GILLIAM HARRIS ENGINEERING, LLC |
| 9499950 | Revetment block mat with linear sides | Nov 06, 15 | Nov 22, 16 | Not available |
| 9464434 | Twisted block | Mar 12, 14 | Oct 11, 16 | KEYSTONE RETAINING WALL SYSTEMS LLC |
| 9175445 | Methods for installing a bounded paving system | Apr 20, 15 | Nov 03, 15 | CPG INTERNATIONAL LLC |
| 8869477 | Formed building materials | Oct 31, 11 | Oct 28, 14 | CALERA CORPORATION |
| 8726595 | Irregular building units having mating sides | Dec 20, 12 | May 20, 14 | KEYSTONE RETAINING WALL SYSTEMS LLC |
| 8377579 | Coatings based on hydraulic binders with an optimal rheology and high photocatalytic activity | Jul 24, 08 | Feb 19, 13 | ITALCEMENTI S.P.A. |
| 7960042 | Cement-based paving blocks for photocatalytic paving for the abatement of urban pollutants | Feb 18, 04 | Jun 14, 11 | ITALCEMENTI S.P.A. |
| 6102614 | Pavement for automobile test course | Sep 16, 98 | Aug 15, 00 | NIPPON ROAD CO., LTD., THE |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2019/0309,484 | TWISTED BLOCK | Jun 24, 19 | Oct 10, 19 | Keystone Retaining Wall Systems LLC |
| 2017/0051,458 | TWISTED BLOCK | Oct 03, 16 | Feb 23, 17 | KEYSTONE RETAINING WALL SYSTEMS LLC |
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