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

Patrick J. Callen — 7 Patents

RCRca: 5 patents #240 of 1,739Top 15%
GE: 2 patents #13,632 of 36,430Top 40%
Yardley, PA: #155 of 643 inventorsTop 25%
Pennsylvania: #11,887 of 74,527 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Patrick J. Callen has been granted 7 US patents while listed as an inventor at Rca. The first was granted in 1981 and the most recent in March 1994. Patrick J. Callen ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Patrick J. Callen in Yardley, PA, US.

Patents per Year

Patents granted per year, 1981 to 1994Bar chart with a peak of 2 patents in 1985.peak 21981: 1 patents19811982: 1 patents19821985: 2 patents19851987: 1 patents19871991: 1 patents19911994: 1 patents1994

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5289998 Solar array output regulator using variable light transmission John D. Bingley 1994-03-01 $15,652,000
5038266 High efficiency, regulated DC supply John D. Bingley 1991-08-06 $18,702,000
4706010 Linear solar array voltage control system John D. Bingley, Richard A. Newell 1987-11-10
4560918 High-efficiency, low-voltage-drop series regulator using as its pass element an enhancement-mode FET with boosted gate voltage 1985-12-24 $3,089,000
4494063 Satellite dual bus power system Philip R. Pierce 1985-01-15 $1,759,000
4313078 Battery charging system Herbert W. Bilsky 1982-01-26 $898,000
4281278 Redundant battery protection system Herbert W. Bilsky 1981-07-28 $1,258,000