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USPTO Patent Rankings Data through Dec 31, 2025
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Robert P. Hamlen — 9 Patents

ALAlupower: 6 patents #2 of 9Top 25%
UAUS Army: 2 patents #1,571 of 6,974Top 25%
ALAlcan International Limited: 1 patents #247 of 522Top 50%
Bernardsville, NJ: #22 of 146 inventorsTop 20%
New Jersey: #9,903 of 69,400 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Robert P. Hamlen has been granted 9 US patents while listed as an inventor at Alupower. The first was granted in 1986 and the most recent in December 1998. Robert P. Hamlen ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Robert P. Hamlen in Bernardsville, NJ, US.

Patents per Year

Patents granted per year, 1986 to 1998Bar chart with a peak of 2 patents in 1990.peak 21986: 1 patents19861988: 1 patents19881990: 2 patents19901991: 1 patents19911992: 1 patents19921994: 1 patents19941996: 1 patents19961998: 1 patents1998

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5849428 Membrane for hydrogen and methanol fuel cell 1998-12-15
5560783 Thermophotovoltaic generator 1996-10-01
5376471 Aluminium battery with electrolyte circulation means John A. Hunter 1994-12-27 $31,736,000
5116695 Deferred actuated battery assembly system Bhaskara M. L. Rao 1992-05-26
D320190 Metal-air fuel cell for lamp 1991-09-24
4959919 Illuminated fishing lure and battery therefor Bhaskara M. L. Rao, James C. Menke 1990-10-02
4910104 Deferred actuated battery Bhaskara M. L. Rao 1990-03-20
4745529 Battery powered light source Thomas J. Zoltner, William Kobasz, Michael V. Rose 1988-05-17
4626482 Metal/air batteries Peter F. Connolly 1986-12-02