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 1991 · every year
1991 · 2
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WO1991014085A1
An alternative method of energising a working fluid
WIPO · Donald George Macleod Whittaker · 19 Sep 1991 · indexed, no text held
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WO1991006881A1
Visual image transmission by fibre optic cable
WIPO · 16 May 1991 · indexed, no text held