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

Roy E. Rand — 29 Patents

IMImatron: 17 patents #1 of 22Top 5%
GE: 6 patents #5,843 of 36,430Top 20%
IMImatrex: 4 patents #2 of 8Top 25%
Siemens Aktiengesellschaft: 1 patents #10,653 of 22,248Top 50%
TSTelesecurity Sciences: 1 patents #6 of 15Top 40%
Portola Valley, CA: #84 of 621 inventorsTop 15%
California: #18,137 of 386,348 inventorsTop 5%
Overall (All Time): #127,851 of 4,157,543Top 4%
29 Patents All Time
Roy E. Rand has been granted 29 US patents while listed as an inventor at Imatron. The first was granted in 1985 and the most recent in May 2020. Roy E. Rand ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Roy E. Rand in Portola Valley, CA, US.

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10660588 Tumor tracing device with multiple scan tubes Douglas P. Boyd, Larry Partain, Samuel M. Song, Namho Kim, Junghyun Kwon 2020-05-26
10332718 Compact deflecting magnet Vitaliy Ziskin 2019-06-25
10290463 Compact deflecting magnet Vitaliy Ziskin 2019-05-14
9801594 Ebeam tomosynthesis for radiation therapy tumor tracking Douglas P. Boyd, Samuel M. Song, Larry Partain, Junghyun Kwon 2017-10-31
7872241 Method and apparatus for production and maintenance of electron beam space-charge neutralization 2011-01-18
7020232 Electron beam computed tomographic scanner system with helical or tilted target, collimator and detector components to eliminate cone beam error and to scan continuously moving objects Jonathan Harman, Douglas P. Boyd 2006-03-28 $26,986,000
6952466 Oil-free electron source for an EBT scanner Khem Garewal, Thomas Clarke Sanders 2005-10-04 $54,488,000
6891321 Oil-free electron source having cathode and anode members adjustable with five degrees of freedom Thomas Clarke Sanders, Khem Garewal 2005-05-10 $31,661,000
6792077 Collimation system for dual slice EBT scanner 2004-09-14 $35,920,000
6735271 Electron beam computed tomographic scanner system with helical or tilted target, collimator, and detector components to eliminate cone beam error and to scan continuously moving objects Jonathan Harman, Douglas P. Boyd 2004-05-11 $55,042,000
6670625 Method and apparatus for correcting multipole aberrations of an electron beam in an EBT scanner Khem Garewal 2003-12-30 $42,246,000
6208711 Method and apparatus for clearing ions in a scanning electron beam computed tomographic system using a single potential power source Khem Garewal, James F. Heilman 2001-03-27 $3,682,000
6160869 Chicane magnet focusing system and deflection magnet for a scanning electron beam computed tomography system Geordie Zapalac 2000-12-12 $5,340,000
5719914 Method for correcting spherical aberration of the electron beam in a scanning electron beam computed tomography system Khem Garewal, Glenn R. James 1998-02-17 $7,124,000
5491734 Off-axis scanning electron beam computed tomography system Douglas P. Boyd 1996-02-13 $4,593,000
5442673 Fixed septum collimator for electron beam tomography Patrick B. Halahan 1995-08-15
5386445 Method and apparatus for electron beam focusing adjustment by electrostatic control of the distribution of beam-generated positive ions in a scanning electron beam computed tomography scanner 1995-01-31 $1,562,000
5289519 Rotatable ion controlling electrode assembly with no offset or deflection of low energy electrons for a scanning electron beam computed tomography scanner 1994-02-22 $1,177,000
5224137 Tuning the scanning electron beam computed tomography scanner Susan E. Plomgren, John L. Couch, Mark C. Nicely 1993-06-29 $934,000
5193105 Ion controlling electrode assembly for a scanning electron beam computed tomography scanner Eugene Y. Tsiang 1993-03-09 $895,000
5105456 High duty-cycle x-ray tube Douglas P. Boyd, Kristian R. Peschmann 1992-04-14 $1,964,000
4993055 Rotating X-ray tube with external bearings Douglas P. Boyd, Kristian R. Peschmann 1991-02-12 $966,000
4644168 Electron beam deflecting magnet assembly for a scanning electron beam computed tomography scanner Dan Wang 1987-02-17 $1,049,000
4631741 Beam spot monitoring arrangement for use in a scanning electron beam computed tomography scanner and method John L. Couch 1986-12-23 $645,000
4625150 Electron beam control assembly for a scanning electron beam computed tomography scanner 1986-11-25 $644,000