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4 identical rotors turning tip to flank in perfectly balanced rotary motion in 1 combustion chamber, our patented PRE is 1/2 size/hp & very fuel efficient.

  • Stage Product In Development
  • Industry Clean Technology
  • Location Burlington, VT, USA
  • Currency USD
  • Founded December 2000
  • Employees 0
  • Incorporation Type C-corp

Company Summary

With 4 identical rotors turning tip to flank in perfectly balanced rotary motion in one combustion chamber, our patented PRE will reduce friction & thermal losses, thus increasing fuel efficiency greatly. A PRE doubles power density HP/cc: half the size of 4stroke piston engines or a Wankel. Via licensees, our ip could dominate all hand-held, lawn & garden, watercraft, ATV, UAV, portable generator, compressor markets and auto under 250 hp.


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    PREC secretary/treasurer & a director

    Stanford BA honors 1960, Columbia PhD 1985. Book on intellectual history published. Also a study of US constitutional law. Taught at Middlebury College. Exec Director of ACLU-VT. Manage my own & my wife's investments
    Chairman & treasurer Jefferson Appropriate Technology Co: 1980s. Drafted 2008 and 2011 PREC private placement memorandums with Ken Merritt. Single parented 2 sons: 1 a VT health care clinician; 1 a senior manager at Pioneer funds.


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    Ian Rutherford, principal of Technology Strategies Group
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    Bob Stiller, founder of Green Mtn Coffee Roasters invested in environment saving start-ups while in Vt. He purchased 10,000 PREC shares for $150,000 in 2011 as PREC R&D went to Prof Ribbens lab. Bob read the PPM & talked with Markowski & Bill Shearer.

Previous Investors

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    Bill Lockwood, co-founder & president of Country Home Products for decades
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    Russ fellows has a background in machinery manufacturing. He rides his motorcycle with other bikers in various countries. He knows engines well. Russ invested in total $28,000 at different times. He has manged his own stock portfolio successfully.
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    Dr Warren Rinehart is an orthopedic specialist and VT environmentalist who invested $35,000 to buy 5000 shares in 2007. Warren has read PREC yearly updates and attended the annual meetings.