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Janis GREIVULIS


Janis GREIVULIS
 Profesor

Born: August 7, 1938, Daugavpils, Latvia
Died: November 21, 2010, in Riga






Interests in inventing:

  • Asynchronous valve cascades and asynchronous electric drive
  • Contactless synchrone machines
  • Elements of automatics, control systems, diagnostics
  • Alternative power industry
  • Piezoceramic energy convertors

Selection of patent documents:

Totally: 100 authors' certificates of USSR and 52 patents of Latvia

Asynchronous valve cascades and asynchronous electric drive

Patents of Latvia:
  • J.Greivulis, I.Avkshtols, C.Kizhlo, M.Sokolovskis. LV 11244, 1996
  • L.Ribickis, S.Petrovs, J.Greivulis. LV 10985, 1996
  • R.Bubnovs, J.Greivulis. LV 11366, 1996
  • R.Bubnovs, J.Greivulis. LV 11577, 1997
  • J.Greivulis. LV 12121, 1998
  • J.Greivulis, V.Bražis, R.Bubnovs.   LV 12580 B, 2001
  • J.Greivulis.   LV 12551 B, 2000
  • R.Bubnovs, J.Greivulis, V.Bražis.   LV 13057, 2003
  • J.Greivulis.  LV 12653 B, 2001
  • J.Greivulis, V.Bražis, J.Voitkans.   LV 13322, 2005   

Contactless synchrone machines

Patents of Latvia:
  • S.Petrovs, V.Pugachovs, J.Greivulis, L.Ribickis. LV 5001, 1993
  • S.Petrovs, J.Greivulis. LV 10885, 1996
  • S.Petrovs, J.Greivulis. LV 10886, 1996
  • S.Petrovs, J.Greivulis, V.Pugachovs. LV 11240, 1996
  • J.Greivulis, S.Petrovs. LV 10823, 1995
  • S.Petrovs, J.Greivulis. LV 11241, 1996
  • R.Bubnovs, J.Greivulis. LV 11576, 1997
  • J.Greivulis, S.Petrovs, R.Bubnovs, A.Terebkovs. LV 12099, 1998
  • J.Greivulis, S.Petrovs, A.Terebkovs.   LV12323, 1999
  • S.Petrovs, J.Grewivulis, I.Raņķis, A.Terebkovs.   LV12246, 1999
  • J.Greivulis.   LV 12709 B, 2001  
  • J.Greivulis.  LV 12871 B, 2002
  • J.Greivulis, R.Bubnovs, A.Terebkovs.   LV 12905 B, 2003
  • J.Greivulis.  LV13490, 2006

Elements of automatics, control systems, diagnostics

Patents of Latvia:
  • J.Greivulis, S.Petrovs. LV 11242, 1996
  • J.Greivulis, M.Dumpis. LV 11636, 1997
  • R.Bubnovs, J.Greivulis. LV 11405, 1996
  • R.Bubnovs, J.Greivulis. LV 11404, 1996
  • J.Greivulis. LV 11508, 1996
  • J.Cimanskis, A.Gasparjans, J.Greivulis, A.Terebkovs, V.Uzhans. LV 11568, 1996
  • J.Cimanskis, A.Gasparjans, J.Greivulis, A.Terebkovs. LV 12120, 1998
  • J.Greivulis, R.Bubnovs, A.Terebkovs.  LV12297 
  • J.Greivulis, R .Bubnovs, A.Terebkovs.   LV12322, 1999
  • J.Greivulis, A.Grundulis, A.Galiņš.  LV 12654 B, 2001
  • J.Greivulis, V.Bražis.   LV 12652 B, 2001
  •  J.Greivulis.   LV 12903 B, 2002 
  •  J.Greivulis.   LV 12904 B, 2002
  • J.Voitkāns, J.Greivulis.   LV 12932 B, 2002
  • J.Voitkāns, J.Greivulis.  LV 13031 B, 2003
  • J.Voitkāns, J.Greivulis, A.Grundulis.   LV 13011, 2003
  • J.Greivulis.  LV 13330, 2005.
  • J.Greivulis, J.Valeinis, V.Bražis.   LV13474, 2006 
  • J.Greivulis, J.Veleinis, D.Zviedris.  LV13475, 2006
  • S.Voitkāns, J.Voitkāns, J.Greivulis.  LV13489, 2006.
  • J.Voitkāns, J.Greivulis.   LV 13432, 2006
  • J.Voitkāns, J.Greivulis.   LV  13431, 2006
  •  

Alternative power industry

Patents of Latvia:
  • J.Greivulis. LV 11211, 1996
  • R.Bubnovs, J.Greivulis. LV 11575, 1996
  • J.Greivulis, S.Petrovs, A.Terebkovs. LV 12055, 1998
  • J.Greivulis, S.Petrovs, A.Terebkovs. LV 12056, 1998
  • A.Šnīders, J.Greivulis, A.Jekabsons.   LV 13364, 2005.
  • J.Greivulis, A.Šnīders.  LV13476, 2006

 Piezoceramic energy convertors

Authors' certificates of USSR:
  • V.Shinkarevs, J.Greivulis, V.Jurkevichs. Nr.1769974
  • J.Greivulis, V.Shinkarevs, V.Jurkevichs. Nr.1746056
  • J.Greivulis, V.Shinkarevs, V.Jurkevichs. Nr1659238

More about the inventor (in Latvian)

 

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