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Okay, okay. What did today's hour of research bring? Well, I now know that Dr. Yen's patent is forward cited a respectable 7 times. The two sulphco patents I looked up were not forward cited at all. Also the patents are in differing fields. One for the cracking and another entirely separate patent for making the sound. Hmmmm. Strange.

 

A blocking patent also seems to exist that is assigned to one Mark Cullen, called Treatment of crude oil fractions, fossil fuels, and products thereof with sonic energy. This patent issues in 03 seems to generalize Yen's patent, but it's terms sound too broad to me. (The abstract reads, I kid you not, "In crude oil fractions, fossil fuels, and organic liquids in general in which it is desirable to reduce the levels of sulfur-containing and nitrogen containing components, the process reduces the level of these compounds via teh application of sonic energy. The process can be performed both with and without the added presence of an oxidizing agent, and with or without elevated temp and or pressure. The invention is performed either as a continuous process or a batch process." This is just gobblygook and good case of another patent examiner who should have be laid out to pasture.

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