DETROIT – After what one legal expert in fuel-cell patents calls an extended period of “patent passivity” in the auto industry, the number of patent filings is skyrocketing – fueled by auto makers and suppliers scrambling to protect advances in hydrogen fuel-cell technology. Robert Fieseler, a registered patent attorney and shareholder at Chicago-based intellectual property and technology law firm McAndrews, Held & Malloy, has been studying trends in applications filed under the Patent ...

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