Individual holder
SHEINGORN LARRY A
4 granted patents·76 citations·filing 1979–1982
Individually held — no corporate assignee on record.
Technology mixA61B4
Top patents by PatentIndex Score
4 records- 0153US4429961AVisual field testing deviceSHEINGORN LARRY A·Filed 1981·Granted Feb 7, 1984·40 cites·4 claims
- 0244US4536065AFixation device for eye testingSHEINGORN LARRY A·Filed 1982·Granted Aug 20, 1985·26 cites·6 claims
- 0327US4392725ADevice for blind spot delineationSHEINGORN LARRY A·Filed 1980·Granted Jul 12, 1983·6 cites·4 claims
- 0427US4253470AMarcus-Gunn quantitatorSHEINGORN LARRY A·Filed 1979·Granted Mar 3, 1981·4 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →