SG

Sten R. Gerfast

3M: 14 patents #1,097 of 11,543Top 10%
IM Imation: 7 patents #37 of 622Top 6%
ME Mcmillan Electric: 2 patents #6 of 11Top 55%
HP HP: 1 patents #3,612 of 7,018Top 55%
Overall (All Time): #79,693 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 25 most recent of 40 patents

Patent #TitleCo-InventorsDate
10333235 Selecting switching functions using screw-force, on modules having traces 2019-06-25
9018819 Brushless, ironless stator, single coil motor without laminations 2015-04-28
8581539 Efficient circuit for brushless low cogging machine with congruent stator 2013-11-12
8378546 Generator with output options and low loss windings 2013-02-19
8074325 Clip-type label 2011-12-13
7847674 Two terminal variable resistor 2010-12-07
7445284 In-expensive head and upper torso restraint with u-shaped air bag 2008-11-04
7371265 Continuous hydrogen and alcohol generator from coal 2008-05-13
7065854 Abutting clinch-joining method 2006-06-27
6940238 Single coil, direct current permanent magnet brushless motor with voltage boost 2005-09-06
6850019 Single coil, direct current permanent magnet brushless motor with voltage boost 2005-02-01
6628495 Fast acting, re-settable circuit breaker without moving parts 2003-09-30
6220539 Drive for handling multiple size information storage media cartridges and cartridges therefor James S. Anderson, Warren W. Opheim, Robert W. Tapani, Hung T. Tran 2001-04-24
6079653 Drive for handling multiple size information storage media cartridges and cartridges therefor James S. Anderson, Warren W. Opheim, Robert W. Tapani, Hung T. Tran 2000-06-27
5949611 Alignment and latching mechanism in a drive for magnetic data tape mini-cartridges Fred O. Stephens, Devin A. Bloom, Leroy A. Kuta, Robert W. Tapani 1999-09-07
5786967 Tape cartridge including an indication device to distinguish between cartridges having different characteristics but nearly identical physical characteristics Eugene S. Johnson, Eddie T. Morioka, Theodore A. Schwarz, Robert W. Tapani 1998-07-28
5779172 Drive for handling multiple size information storage media cartridges and cartridges therefor James S. Anderson, Warren W. Opheim, Robert W. Tapani, Hung T. Tran 1998-07-14
5695143 Belt-driven tape cartridge having an idler roller near each corner 1997-12-09
5558291 Drive for handling multiple size information storage media cartridges and cartridges therefor James S. Anderson, Warren W. Opheim, Robert W. Tapani, Hung T. Tran 1996-09-24
5516055 Tape tension enhancement for belt driven tape cartridge corner rollers Daniel C. Egan, Frank Phillips, Clarence W. Schultz, Ronald D. Stimpson 1996-05-14
D366059 Tape cartridge James J. Evanoff, John T. Gianfagna, Leroy A. Kuta, Robert W. Tapani 1996-01-09
5480103 Mechanically incompatible magnetic recording tape cartridges having the same form factor Daniel C. Egan 1996-01-02
RE34765 Recording medium annealing process Jerry L. Alexander, Sankar B. Narayan, Charles E. Nelson 1994-10-25
5204570 Spheroidal machine 1993-04-20
4984119 Cleaning apparatus for magnetic data tape cartridges Richard A. Backlund 1991-01-08