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Energy Concepts Patent Estate

The U.S. Patent Office has awarded Energy Concepts 35 patents on heat-activated cooling technology, encompassing absorption cycles, working fluids, and components. Another 27 patents were granted in fluid contacting apparatus (including cryogenic distillation).

In recognition of the cutting-edge position of the ECC patents, the Patent Office has created a new cross-reference class of patents consisting solely of those patents: class 62-936.

Energy Concepts Patents

  1. 3,975,913  Gas Generator and Enhanced Energy Conversion Systems. August 24, 1976. 
  2. 4,126,668  Production of Hydrogen Rich Gas by Combined Steam Reforming and Intermediate Oxidation Reduction. November 12, 1978. 
  3. 4,132,766  Separation of Oxygen from Gaseous Mixtures with Molten Alkali Metal Salts. January 2, 1979. 
  4. 4,173,619  Combustion Gas Desulfurization. November 6, 1979. 
  5. 4,207,298  High Temperature Removal of H2S from Reducing Gas. June 10, 1980. 
  6. 4,216,199  Hydrogen Production From Carbonaceous Fuels Using Intermediate OxidationReduction. August 5, 1980. 
  7. 4,283,374  Regenerable Manganese Oxide Hot Gas Desulfurization Process. August 11, 1981.
  8. 4,287,170  Nitrogen and Oxygen Via Chemical Air Separation. September 1, 1981. 
  9. 4,310,503  Hydrogen Production by Multistaged Intermediate OxidationReduction. January 12, 1982. 
  10. 4,340,578  Oxygen Production by Molten Alkali Metal Salts. July 20, 1982. 
  11. 4,350,571  Absorption Heat Pump Augmented Thermal Separation Process. September 21, 1982. 
  12. 4,357,153  Internally Heat Pumped Single Pressure Distillative Separations. November 2, 1982. 
  13. 4,357,308  Dual Temperature Dual Alkali Desulfurization. November 2, 1982. 
  14. 4,402,795  Reverse Absorption Heat Pump Augmented Distillation Process. September 6, 1983. 
  15. 4,433,989  Air Separation with Medium Pressure Enrichment. February 28, 1984. 
  16. 4,454,724  Aqueous Absorbent for Absorption Cycle Heat Pump. June 19, 1984. 
  17. 4,464,191  Cryogenic Gas Separation with Liquid Exchanging Columns. August 7, 1984. 
  18. 4,521,398  Controlled Temperature Expansion in Oxygen Production by Molten Alkali Metal Salts. June 4, 1985. 
  19. 4,533,375  Cryogenic Air Separation with Cold Argon Recycle. August 6, 1985. 
  20. 4,563,295  High Temperature Absorbent for Water Vapor. January 7, 1986. 
  21. 4,578,095  Low Energy High Purity Oxygen Plus Argon. March 25, 1986. 
  22. 4,582,518  Nitrogen Production by Low Energy Distillation. April 15, 1986. 
  23. 4,604,116  High Pressure Oxygen Pumped LOX Rectifier. August 5, 1986. 
  24. 4,605,427  Cryogenic Triple Pressure Air Separation with LPtoMP Latent Heat Exchange. August 12, 1986. 
  25. 4,614,605  Water Vapor Absorbent Containing Cesium Hydroxide. September 30, 1986. 
  26. 4,652,279  Thermally Stable Noncorrosive Water Vapor Absorbent. March 24, 1987. 
  27. 4,670,031  Increased Argon Recovery from Air Distillation. June 2, 1987. 
  28. 4,715,874  Retrofittable Argon Recovery Improvement to Air Separation. December 29, 1987. 
  29. 4,737,177  Air Distillation Improvements for High Purity Oxygen. April 12, 1988. 
  30. 4,744,224  Intermittent Solar Ammonia Absorption Cycle Refrigerator. May 17, 1988. 
  31. 4,746,502  Liquid Phase Thermal Swing Chemical Air Separation. May 24, 1988. 
  32. 4,756,731  Oxygen and Argon by Backpressured Distillation. July 12, 1988. 
  33. 4,769,055  Companded Total Condensation Reboil Cryogenic Air Separation. September 6, 1988 
  34. 4,775,399  Air Fractionation Improvements for Nitrogen Production. October 4, 1988 
  35. 4,777,803  Air Partial Expansion Refrigeration for Cryogenic Air Separation. October 18, 1988. 
  36. 4,781,739  Low Energy High Purity Oxygen Increased Delivery Pressure. November 1, 1988. 
  37. 4,783,209  Cryogenic Air Distillation with Companded Nitrogen Refrigeration. November 8, 1988 
  38. 4,784,783  Nonvolatile Highlift Ammonia Vapor Absorbent. November 15, 1988. 
  39. 4,796,431  Nitrogen Partial Expansion Refrigeration for Cryogenic Air Separation. January 10, 1989. 
  40. 4,801,393  High Temperature NonOxidizing Water Vapor Absorbent. January 31, 1989. 
  41. 4,803,958  Absorption Heat Pumped Cogeneration Engine. February 14,1989. 
  42. 4,817,393  Companded Total Condensation LOXBOIL Air Distillation. April 4, 1989. 
  43. 4,817,394  Optimized Intermediate Height Reflux for Multipressure Air Distillation. April 4, 1989. 
  44. 4,824,527  Nested Enrichment Cascade Distillation of Unequal Mixtures. April 25, 1989. 
  45. 4,832,719  Enhanced Argon Recovery from Intermediate LINBOIL. May 23, 1989. 
  46. 4,846,240  High COP Absorption Heat Pumped Evaporation Method and Apparatus. July 11, 1989. 
  47. 4,854,954  Rectifier Liquid Generated Intermediate Reflux for Subambient Cascades. August 8, 1989. 
  48. 4,966,014  Improvements to Solar Absorption Refrigeration. October 30, 1990 
  49. 5,016,444  One-And-A-Half Effect Absorption Cycle. May 21, 1991. 
  50. 5,024,063  Branched GAX Absorption Vapor Compressor. June 18, 1991. 
  51. 5,033,274  Rectification Reflux by Latent Heat Exchange with Partially Depressurized Absorbent. July 23, 1991. 
  52. 5,097,676  Vapor Exchange Duplex GAX Absorption Cycle. March 24, 1992. 
  53. 5,272,891  Intermittent Sorption Cycle with Integral Thermosyphon. December 28, 1993. 
  54. 5,279,359  Rotary Trisorption Heat Pump (R3HP), January 18, 1994. 
  55. 5,309,985  Stationary Continuous Multimodular Trisorption Heat Pump. May 10, 1994. 
  56. 5,408,847  Rotary Solid Sorption Heat Pump With Embedded Thermosyphons. April 25, 1995. 
  57. 5,572,885  Shrouded Coiled Crested Tube Diabatic Mass Exchanger. November 12, 1996. 
  58. 5,653,116  Triple-Effect Absorption Cycle With Condensate-to-Solution Sensible Heat Exchanger, August 5, 1997. 
  59. 5,660,049  Sorber With Multiple Cocurrent Pressure Equalized Upflows. August 26, 1997. 
  60. 5,713,216  Coiled Tubular Diabatic Vapor-Liquid Contactor. February 3, 1998. 
  61. 5,766,519  Locally Cocurrent Globally Crosscurrent Pressure-Equalized Absorber and Process. June 16, 1998. 
  62. 5,771,710  Thermosyphon Cooled Absorber for Air Cooled Absorption Cycles. June 30, 1998. 
  63. 5,798,086  Intensified Locally Cocurrent Tray Contactors. August 25, 1998. 
  64. 6,158,241  LPG Recovery from Reformer Treat Gas. December 12, 2000. 
  65. 6,203,718  B1 Aqueous Ammonia Corrosion Inhibitor, March 20, 2001 
  66. 6,269,644  B1 Absorption Power Cycle with Two Pumped Absorbers. August 7, 2001. 
  67. 6,412,291  B1 Air Compression Improvement. July 2, 2002. 
  68. 6,584,801  B2 Absorption Cycle with Integrated heating System. July 1, 2003 
  69. 6,585,238  B1 Locally Co-Current Horizontally Staged Contact Tray. July 1, 2003. 
  70. 6,631,892  B1 Tray Contactor with Same Direction Liquid Flow (CoFlow Tray) October 14, 2003 
  71. 6,679,083  B1 Opposed Slant Tube Diabatic Sorber, January 20, 2004 
  72. 6,715,290  Fluid Mixture Separation by Low Temperature Glide Heat, April 6, 2004 
  73. 6,739,119  B2 Combustion Engine Improvement, May 28, 2004 
  74. 6,895,740  Steam Ammonia Power Cycle, May 24, 2005 
  75. 7,762,054  Thermally Powered Turbine Inlet Air Chiller Heater, July 27, 2010
  76. 8,490,427  Liquid Desiccant Chiller, July 23, 2013

 

 

    

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