Growing community of inventors

Pulheim, Germany

Sigurd Leyck

Average Co-Inventor Count = 3.92

ph-index = 6

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 = 108

Sigurd LeyckAndre Welter (6 patents)Sigurd LeyckEugen Etschenberg (4 patents)Sigurd LeyckErich Graf (4 patents)Sigurd LeyckMichael J Parnham (4 patents)Sigurd LeyckHans-Heiner Lautenschlager (3 patents)Sigurd LeyckMichel Evers (2 patents)Sigurd LeyckMiklos Ghyczy (2 patents)Sigurd LeyckHans Betzing (2 patents)Sigurd LeyckManfred Durr (2 patents)Sigurd LeyckJorg Hager (2 patents)Sigurd LeyckJurgen Biedermann (2 patents)Sigurd LeyckArmin Wendel (2 patents)Sigurd LeyckAlbrecht Wendel (2 patents)Sigurd LeyckNorbert Dereu (2 patents)Sigurd LeyckHartmut Fischer (2 patents)Sigurd LeyckHelmut Wetzig (2 patents)Sigurd LeyckRolf Terlinden (2 patents)Sigurd LeyckHelmut Sies (2 patents)Sigurd LeyckGerrit Prop (1 patent)Sigurd LeyckGerd Hilboll (1 patent)Sigurd LeyckJohannes Winkelmann (1 patent)Sigurd LeyckHarald O Borbe (1 patent)Sigurd LeyckAxel Romer (1 patent)Sigurd LeyckJoachim Uhlendorf (1 patent)Sigurd LeyckAxel Brekle (1 patent)Sigurd LeyckAxel Roemer (1 patent)Sigurd LeyckVolker Schulz (1 patent)Sigurd LeyckSigurd Leyck (16 patents)Andre WelterAndre Welter (10 patents)Eugen EtschenbergEugen Etschenberg (19 patents)Erich GrafErich Graf (8 patents)Michael J ParnhamMichael J Parnham (8 patents)Hans-Heiner LautenschlagerHans-Heiner Lautenschlager (16 patents)Michel EversMichel Evers (23 patents)Miklos GhyczyMiklos Ghyczy (23 patents)Hans BetzingHans Betzing (17 patents)Manfred DurrManfred Durr (12 patents)Jorg HagerJorg Hager (9 patents)Jurgen BiedermannJurgen Biedermann (9 patents)Armin WendelArmin Wendel (7 patents)Albrecht WendelAlbrecht Wendel (6 patents)Norbert DereuNorbert Dereu (6 patents)Hartmut FischerHartmut Fischer (3 patents)Helmut WetzigHelmut Wetzig (3 patents)Rolf TerlindenRolf Terlinden (2 patents)Helmut SiesHelmut Sies (2 patents)Gerrit PropGerrit Prop (13 patents)Gerd HilbollGerd Hilboll (10 patents)Johannes WinkelmannJohannes Winkelmann (7 patents)Harald O BorbeHarald O Borbe (5 patents)Axel RomerAxel Romer (4 patents)Joachim UhlendorfJoachim Uhlendorf (2 patents)Axel BrekleAxel Brekle (2 patents)Axel RoemerAxel Roemer (1 patent)Volker SchulzVolker Schulz (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. A. Nattermann & Cie Gmbh (15 from 94 patents)

2. Nattermann & Cie Gmbh (1 from 5 patents)


16 patents:

1. 5141955 - Anti-inflammatory benzylselenobenzamides made from anilines and

2. 5114954 - Antiinflammatory benzylselenobenzamides from aminopyridines and

3. 4910313 - Diselenobis benzoic acid amides of primary heterocyclic amines, process

4. 4730053 - S-[2-phenyl (alkyl) carbamoyl]-phenylselenylmercapto derivatives

5. 4711961 - Benzisoselenazolethiones and process for the treatment of various

6. 4705802 - Omega-aryl-alkylthienyl-compounds and process for the treatment of

7. 4687766 - Pharmaceutical preparation for the therapeutic treatment of rheumatic

8. 4684632 - Formulation with special 1,2-diacylglycero-3-phosphocholines for the

9. 4667033 - Substituted 6-(thien-2-yl)-3(2H)-pyridazinones

10. 4618669 - S-(carbamoyl-phenylselenyl) derivatives of glutathione and of

11. 4610979 - O-acyl-alkanediol-phospholipids and processes for the treatment of asthma

12. 4600722 - 3-amino-1-(4,5,6,7-tetrahydro-benzothiazolyl)-2-pyrazolines and a

13. 4550168 - Benzisoselenazolones and a process for the treatment of inflammatory

14. 4464379 - Indol acetic acid derivatives and anti-inflamatory and related uses

15. 4454068 - Cycloalkyl derivatives of benzisoselenazolones

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12/30/2025
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