Appeal No. 2003-1066 Application No. 09/841,277 other pending claim, stands withdrawn from consideration by the examiner as being drawn to a non-elected invention. The Invention The appellants claim a pyrolysis heater for the pyrolysis of hydrocarbons. Claim 1, which is the broadest claim on appeal, is illustrative: 1. A pyrolysis heater for the pyrolysis of hydrocarbons comprising: a. a radiant heating zone having a bottom hearth, a lower portion adjacent to and extending upwardly from said hearth and an upper portion extending upwardly from said lower portion; b. at least one tubular heating coil for processing said hydrocarbons located in said radiant heating zone and extending into both said upper portion and said lower portion; c. a plurality of hearth burners located adjacent to said hearth directed upwardly for firing vertically up through said lower portion and into said upper portion; and d. a plurality of base burners located on said hearth for firing in contact with said hearth thereby creating a heated radiating hearth surface. The References In addition to the appellants’ admitted prior art (specification, page 5 & Figure 1), the examiner relies on the following references as evidence of unpatentability: Bauer et al. 4,342,642 Aug. 03, 1982 (Bauer) 2Page: Previous 1 2 3 4 5 6 7 NextLast modified: November 3, 2007