Patents
Patents filed since that cite Meyer's. Most are other people's work, and an examiner chose many of them during prosecution rather than the applicant volunteering them.
Citation index — what each of Meyer’s filings cites, and every later patent citing it.
2 patents from 1992 · every year
1992 · 2
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DE4103344A1
Solar system for heating water - consists of two separate transparent plastics bags containing water with heat exchanger between
Germany · 13 Aug 1992 · indexed, no text held
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DE4041968A1
Latent heat storage system - overcomes time different between energy offer and use, saving energy and bridging over peak times
Germany · 25 Jun 1992 · indexed, no text held