El-Sayed Megahed has been granted 14 US patents while listed as an inventor at Rayovac . The first was granted in 1988 and the most recent in September 2002. El-Sayed Megahed ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list El-Sayed Megahed in Madison, WI, US.
Patents per Year Patents granted per year, 1988 to 2002 Bar chart with a peak of 3 patents in 1989. peak 3 1988: 2 patents 1988 1989: 3 patents 1989 1991: 1 patents 1991 1993: 1 patents 1993 1995: 2 patents 1995 1996: 1 patents 1996 1997: 1 patents 1997 1998: 1 patents 1998 1999: 1 patents 1999 2002: 1 patents 2002
Issued Patents All Time
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Showing 1–14 of 14 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6444356 Lithium battery with secondary battery separator Jackson C. Ma , Timothy J. Stachoviak , Shirley A. Craanen , Daniel A. Schneider , Joseph P. Nestler 2002-09-03
6001508 AgO cathode battery Joseph L. Passaniti , Nuri A. Zreiba 1999-12-14
$5,532,000
5750288 Modified lithium nickel oxide compounds for electrochemical cathodes and cells Like Xie , David T. Fouchard , Walter B. Ebner 1998-05-12
$5,776,000
5606238 Discriminating battery charging system Patrick J. Spellman , Karl E. Anderson , Bryan D. Jaedike 1997-02-25
5589109 Method for producing a cathode material containing silver and bismuth Joseph L. Passaniti , Nuri A. Zreiba 1996-12-31
5424927 Electro-optic flashlight electro-optically controlling the emitted light David R. Schaller , Gregory L. Mills 1995-06-13
5389469 AgO battery, and material Joseph L. Passaniti , Nuri A. Zreiba 1995-02-14
5246795 High temperature lithium solid cathode electrochemical cells Ralph H. Feldhake , Robert J. Bosben , Daniel Rohde , James L. Lautzenhiser 1993-09-21
5077644 Reflector for hand held flashlight David R. Schaller , Tor Pettersen , Gregory L. Mills 1991-12-31
4855647 Flashlight with soft turn on control David R. Schaller , Charles E. Samson 1989-08-08
4835077 AgO cathode material Alexander K. Fung 1989-05-30
4803605 Flashlight with a backup system David R. Schaller , James U. Neyer , Tor Petterson 1989-02-07
4783725 Flashlight with space efficient reflector David R. Schaller , Charles F. Samson 1988-11-08
4760504 Magnetically activated flashlight David R. Schaller , Charles F. Samson 1988-07-26