Assignee
HERITAGE ENVIRONMENTAL SERV
US·20 granted patents·203 citations·filing 1992–2013
Top patents by PatentIndex Score
20 records- 0187US6831939B2Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materialsHERITAGE ENVIRONMENTAL SERV·Filed 2003·Granted Dec 14, 2004·22 cites·19 claims
- 0283US5591346AWater treatment processHERITAGE ENVIRONMENTAL SERV·Filed 1995·Granted Jan 7, 1997·57 cites·4 claims
- 0379US6991593B2Hazardous waste stabilization methods, products and testing proceduresHERITAGE ENVIRONMENTAL SERV·Filed 2002·Granted Jan 31, 2006·36 cites·31 claims
- 0477US5451414AMicronutrient supplementHERITAGE ENVIRONMENTAL SERV·Filed 1994·Granted Sep 19, 1995·25 cites·3 claims
- 0573US7413590B2Use of an induction furnace for the production of iron from oreHERITAGE ENVIRONMENTAL SERV·Filed 2006·Granted Aug 19, 2008·2 cites·20 claims
- 0673US6932853B2Mechanical separation of volatile metals at high temperaturesHERITAGE ENVIRONMENTAL SERV·Filed 2003·Granted Aug 23, 2005·9 cites·27 claims
- 0770US6682586B2Assemblies and methods for processing zinc-bearing materialsHERITAGE ENVIRONMENTAL SERV·Filed 2001·Granted Jan 27, 2004·9 cites·45 claims
- 0870US6562101B1Processing electric arc furnace dust through a basic oxygen furnaceHERITAGE ENVIRONMENTAL SERV·Filed 2002·Granted May 13, 2003·8 cites·16 claims
- 0966US6562096B1Management of electric arc furnace dust through a basic oxygen furnaceHERITAGE ENVIRONMENTAL SERV·Filed 2002·Granted May 13, 2003·9 cites·18 claims
- 1065US7513929B2Operation of iron oxide recovery furnace for energy savings, volatile metal removal and slag controlHERITAGE ENVIRONMENTAL SERV·Filed 2005·Granted Apr 7, 2009·2 cites·21 claims
- 1164US7767188B2Calcium-sodium polysulfide chemical reagent and production methodsHERITAGE ENVIRONMENTAL SERV·Filed 2009·Granted Aug 3, 2010·0 cites·10 claims
- 1261US7144362B2Method for chemically stabilizing waste materials containing multivalent oxyanionsHERITAGE ENVIRONMENTAL SERV·Filed 2004·Granted Dec 5, 2006·8 cites·7 claims
- 1356US9090773B2Method for preparing silicon—sulfur compounds and their use in bitiminous compositionsHERITAGE ENVIRONMENTAL SERV·Filed 2013·Granted Jul 28, 2015·0 cites·1 claims
- 1450US7776127B2Use of a channel induction furnace to process at least one of a molten metal product, a vapor phase metal product and a slag product from a variety of feed materialsHERITAGE ENVIRONMENTAL SERV·Filed 2008·Granted Aug 17, 2010·0 cites·11 claims
- 1550US7727302B2Slag control in a channel induction furnaceHERITAGE ENVIRONMENTAL SERV·Filed 2008·Granted Jun 1, 2010·0 cites·22 claims
- 1649US7785389B2Feed material composition and handling in a channel induction furnaceHERITAGE ENVIRONMENTAL SERV·Filed 2008·Granted Aug 31, 2010·0 cites·20 claims
- 1749US7776126B2Processing parameters for operation of a channel induction furnaceHERITAGE ENVIRONMENTAL SERV·Filed 2008·Granted Aug 17, 2010·0 cites·19 claims
- 1849US7740681B2Reductant addition in a channel induction furnaceHERITAGE ENVIRONMENTAL SERV·Filed 2008·Granted Jun 22, 2010·0 cites·14 claims
- 1939US5534043AMicronutrient supplementHERITAGE ENVIRONMENTAL SERV·Filed 1995·Granted Jul 9, 1996·6 cites·4 claims
- 2025US5256313ASystem and process for treatment of cyanide-containing wasteHERITAGE ENVIRONMENTAL SERV·Filed 1992·Granted Oct 26, 1993·10 cites·16 claims
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