Individual holder
ZEREN JOSEPH D
US·4 granted patents·161 citations·filing 1976–2011
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0193US4099720AExpanding arrowheadZEREN JOSEPH D·Filed 1976·Granted Jul 11, 1978·96 cites·30 claims
- 0281US8496550B2Highly efficient impact operative arrowheadsZEREN JOSEPH D·Filed 2011·Granted Jul 30, 2013·14 cites·26 claims
- 0371US5301388ACritically safe vacuum pickup for use in wet or dry cleanup of radioactive materialsZEREN JOSEPH D·Filed 1992·Granted Apr 12, 1994·32 cites·11 claims
- 0451US5273561ACritically safe volume vacuum pickup for use in wet or dry cleanup of radioactive enclosuresZEREN JOSEPH D·Filed 1992·Granted Dec 28, 1993·19 cites·12 claims
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