Keith Gardner — 7 Patents at Plasmon Data Systems

Keith Gardner has been granted 7 US patents while listed as an inventor at Plasmon Data Systems. The first was granted in 1982 and the most recent in May 1990. Keith Gardner ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Keith Gardner in Malvern, GB.

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Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date
4928132	Optical data storage medium	Robert M. Pettigrew, Victor C. Humberstone, Robert Longman, Peter R. Helfet	1990-05-22
4802736	Interferometers	Robert Longman, Robert M. Pettigrew, Walter T. Welford	1989-02-07
4758307	Method of manufacturing a data storage medium	Robert M. Pettigrew, Victor C. Humberstone	1988-07-19
4724444	Data storage medium	Robert M. Pettigrew, Victor C. Humberstone, Robert Longman, Peter R. Helfet	1988-02-09
4703469	Optical data recording using radiation of different characteristics	Robert M. Pettigrew, Robert Longman	1987-10-27
4616237	Data storage medium	Robert M. Pettigrew, Victor C. Humberstone	1986-10-07
4346991	Method and apparatus for measuring retinal blood flow	Edward R. Pike, David W. Hill	1982-08-31

Keith Gardner — 7 Patents

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