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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RH

Robert Harper — 7 Patents

RTX (Raytheon): 4 patents #2,978 of 15,912Top 20%
IPIqe Plc: 1 patents #24 of 43Top 60%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Robert Harper has been granted 7 US patents while listed as an inventor at RTX (Raytheon). The first was granted in 1981 and the most recent in July 2019. Robert Harper ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert Harper in Newport, MA, GB.

Patents per Year

Patents granted per year, 1981 to 2019Bar chart with a peak of 2 patents in 1981.peak 21981: 2 patents19811988: 1 patents19881989: 2 patents19892015: 1 patents20152019: 1 patents2019

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10367107 Multijunction photovoltaic device having an Si barrier between cells Andrew Johnson, Andrew W. Nelson 2019-07-30
9048289 Formation of thin layers of semiconductor materials 2015-06-02
4851736 Helical waveguide to rectangular waveguide coupler Cheryl V. Liss 1989-07-25 $3,718,000
4807355 Method of manufacture of coupled-cavity waveguide structure for traveling wave tubes 1989-02-28 $12,622,000
4765056 Method of manufacture of helical waveguide structure for traveling wave tubes Joseph L. Rousseau 1988-08-23 $5,331,000
4282457 Backward wave suppressor 1981-08-04 $6,674,000
4271502 Digital voice conferencer Michel M. H. Goutmann 1981-06-02 $449,000