NV

Norbert C. Vollmann

U.S. Philips: 23 patents #44 of 8,851Top 1%
ON Onstream: 2 patents #2 of 6Top 35%
PB Polygram International Holding B.V.: 1 patents #9 of 22Top 45%
VE Verbatim: 1 patents #37 of 80Top 50%
Overall (All Time): #156,571 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 25 most recent of 26 patents

Patent #TitleCo-InventorsDate
D442605 Extended tape cartridge Donald Stanley 2001-05-22
6122137 Loading mechanism for a recording and reproducing apparatus wherein a switch mechanism and the loading mechanism are a single unit 2000-09-19
6016236 Apparatus for the storage and/or reproduction of information on/from an information carrier 2000-01-18
5986854 Magnetic cassette recorder with reversing and translating magnetic head 1999-11-16
5883755 Apparatus for storage and/or reproduction of information on/from an information carrier 1999-03-16
5779173 Apparatus for operating the shutter of a cassette 1998-07-14
5760996 System for recording/reproducing signals on/ from a magnetic tape in a cassette 1998-06-02
5734539 System for recording and/or reproducing information, including a cassette with a record carrier in tape form and an apparatus 1998-03-31
5610778 Magnetic tape apparatus which senses and plays different types of cassette 1997-03-11
5592352 System for recording/reproducing signals on/from a magnetic tape in a cassette 1997-01-07
5454529 Cassette provided with magnetic tape 1995-10-03
5404251 Auto reverse cassette deck capable of recording/reproducing with two different cassette types and formats Jozef M. Duurland, Bernard Timmer 1995-04-04
5365393 Magnetic tape cassette having a groove extending perpendicular to a front wall thereof for engagement by a loading mechanism of a tape cassette apparatus Georg Weber, Thomas Scholz 1994-11-15
5357390 Magnetic tape with a cylindrical magnetic head housing 1994-10-18
5309302 System comprising a player and/or recorder apparatus and a tape cassette, and the apparatus and a cassette suitable for use in such a system 1994-05-03
5264987 Cassette for magnetic tape provided with window Peter J. Doodson 1993-11-23
5237479 Tape cassette with slidable cover 1993-08-17
5231553 System comprising magnetic tape cassette apparatus and two different types of magnetic tape cassettes playable in such apparatus Georg Weber, Thomas Scholz 1993-07-27
5219090 Holder provided with two compartments and a cover arrangement 1993-06-15
5214554 Cassette for a record carrier Peter J. Doodson, Anton Stoger, Gunther Bernauer 1993-05-25
5187629 Cassette with magnetic tape on two coplanar reels Jan Dewolf, Gunther Bernauer, Anton Stoger, Marco V. Koningsberger 1993-02-16
5184259 Helical-scan magnetic tape apparatus having a tape-transport path with twisting path-sections for tape-path correction Johannes C. A. Muller 1993-02-02
D331235 Digital compact cassette Peter J. Doodson 1992-11-24
5074486 Magnetic-tape cassette 1991-12-24
4722239 Gear mechanism Harald Fleck, Leopold Mader 1988-02-02