Growing community of inventors

Budapest, Hungary

Istvan Lak

Average Co-Inventor Count = 9.90

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 8

Istvan Lak ↔ Sandor Zoltan (2 patents)Istvan Lak ↔ Lajos T Nagy (1 patent)Istvan Lak ↔ Jozsef Knoll (1 patent)Istvan Lak ↔ Eva Somfai (1 patent)Istvan Lak ↔ Bela Bertok (1 patent)Istvan Lak ↔ Sandor Botar (1 patent)Istvan Lak ↔ Gyorgy Hidasi (1 patent)Istvan Lak ↔ Antal Gajary (1 patent)Istvan Lak ↔ Peter Tetenyi (1 patent)Istvan Lak ↔ Agnes Hegedus (1 patent)Istvan Lak ↔ Erno Tyihak (1 patent)Istvan Lak ↔ Janos Nagy (1 patent)Istvan Lak ↔ Emil Mincsovics (1 patent)Istvan Lak ↔ Janis Hajimichael (1 patent)Istvan Lak ↔ Huba Kalasz (1 patent)Istvan Lak ↔ Maria Tary (1 patent)Istvan Lak ↔ Istavan Szekely (1 patent)Istvan Lak ↔ Andras Rapi (1 patent)Istvan Lak ↔ Lajos Nagy (1 patent)Istvan Lak ↔ Istvan Szekely (1 patent)Istvan LakIstvan Lak (2 patents)Sandor ZoltanSandor Zoltan (13 patents)Lajos T NagyLajos T Nagy (48 patents)Jozsef KnollJozsef Knoll (37 patents)Eva SomfaiEva Somfai (37 patents)Bela BertokBela Bertok (14 patents)Sandor BotarSandor Botar (14 patents)Gyorgy HidasiGyorgy Hidasi (10 patents)Antal GajaryAntal Gajary (9 patents)Peter TetenyiPeter Tetenyi (9 patents)Agnes HegedusAgnes Hegedus (8 patents)Erno TyihakErno Tyihak (8 patents)Janos NagyJanos Nagy (6 patents)Emil MincsovicsEmil Mincsovics (5 patents)Janis HajimichaelJanis Hajimichael (4 patents)Huba KalaszHuba Kalasz (4 patents)Maria TaryMaria Tary (2 patents)Istavan SzekelyIstavan Szekely (1 patent)Andras RapiAndras Rapi (1 patent)Lajos NagyLajos Nagy (1 patent)Istvan SzekelyIstvan Szekely (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,843 patents)

2. Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt. (1 from 283 patents)

3. Gyorgy Hidasi (0 patent)

4. Janis Hajimichael (0 patent)

5. Lajos Nagy (0 patent)

6. Eva Somfai (0 patent)

7. Sandor Zoltan (0 patent)

8. Agnes Hegedus (0 patent)

9. Istvan Lak (0 patent)

10. Antal Gajary (0 patent)

11. Andras Rapi (0 patent)

12. Maria Tary (0 patent)

13. Sandor Botar (0 patent)

14. Bela Bertok (0 patent)

15. Istvan Szekely (0 patent)


2 patents:

1. 5153349 - Process for the preparation of cypermethrine isomers

2. 4591524 - Chromatographic sheet of layer for pressurized layer chromatographic

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as of
12/29/2025
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