Growing community of inventors

Bergisch Gladbach, Germany

Karl-Erwin Piejko

Average Co-Inventor Count = 3.97

ph-index = 9

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 = 346

Karl-Erwin PiejkoChristian Lindner (35 patents)Karl-Erwin PiejkoHerbert Eichenauer (14 patents)Karl-Erwin PiejkoHans-Eberhard Braese (13 patents)Karl-Erwin PiejkoHolger Lutjens (12 patents)Karl-Erwin PiejkoKarl-Heinz Ott (8 patents)Karl-Erwin PiejkoEdgar Leitz (8 patents)Karl-Erwin PiejkoUwe Westeppe (7 patents)Karl-Erwin PiejkoBruno Bomer (6 patents)Karl-Erwin PiejkoGerd Fengler (5 patents)Karl-Erwin PiejkoRalph Ostarek (5 patents)Karl-Erwin PiejkoJurgen Kirsch (4 patents)Karl-Erwin PiejkoRalf Kruger (4 patents)Karl-Erwin PiejkoDieter Arlt (3 patents)Karl-Erwin PiejkoDieter Wittmann (3 patents)Karl-Erwin PiejkoRolf Grosser (3 patents)Karl-Erwin PiejkoTorsten Groth (3 patents)Karl-Erwin PiejkoAdolf Schmidt (3 patents)Karl-Erwin PiejkoLeo Morbitzer (3 patents)Karl-Erwin PiejkoGerhard Langstein (3 patents)Karl-Erwin PiejkoJosef Kasbauer (3 patents)Karl-Erwin PiejkoOtto Billinger (3 patents)Karl-Erwin PiejkoUlrich Schwartz (3 patents)Karl-Erwin PiejkoUlrich R Grigo (2 patents)Karl-Erwin PiejkoClaus H Wulff (2 patents)Karl-Erwin PiejkoUlrich Jansen (2 patents)Karl-Erwin PiejkoUlrich Eisele (2 patents)Karl-Erwin PiejkoRolf Kubens (2 patents)Karl-Erwin PiejkoLothar Meier (2 patents)Karl-Erwin PiejkoBernd-Michael Konig (2 patents)Karl-Erwin PiejkoManfred T Reetz (2 patents)Karl-Erwin PiejkoAlfred Jung (2 patents)Karl-Erwin PiejkoRudiger Plaetschke (2 patents)Karl-Erwin PiejkoPeter Kruger (2 patents)Karl-Erwin PiejkoGerd F Renner (2 patents)Karl-Erwin PiejkoDieter Constant (2 patents)Karl-Erwin PiejkoDieter Wittman (2 patents)Karl-Erwin PiejkoAlbrecht Marhold (1 patent)Karl-Erwin PiejkoHans-Josef Buysch (1 patent)Karl-Erwin PiejkoWolfgang Podszun (1 patent)Karl-Erwin PiejkoHeinrich Alberts (1 patent)Karl-Erwin PiejkoBurkhard Kohler (1 patent)Karl-Erwin PiejkoHerman J Uytterhoeven (1 patent)Karl-Erwin PiejkoKarsten-Josef Idel (1 patent)Karl-Erwin PiejkoHans-Jurgen Kress (1 patent)Karl-Erwin PiejkoWerner Nouvertne (1 patent)Karl-Erwin PiejkoVolker Serini (1 patent)Karl-Erwin PiejkoWinfried Joentgen (1 patent)Karl-Erwin PiejkoAlfred Pischtschan (1 patent)Karl-Erwin PiejkoRalf Dujardin (1 patent)Karl-Erwin PiejkoHerbert Bartl (1 patent)Karl-Erwin PiejkoBernd Alig (1 patent)Karl-Erwin PiejkoSiegfried Korte (1 patent)Karl-Erwin PiejkoJochen Schoeps (1 patent)Karl-Erwin PiejkoMichael Negele (1 patent)Karl-Erwin PiejkoJosef Merten (1 patent)Karl-Erwin PiejkoFrank Wingler (1 patent)Karl-Erwin PiejkoJosef Buekers (1 patent)Karl-Erwin PiejkoKlaus D Berg (1 patent)Karl-Erwin PiejkoRobert Horst Bloodworth (1 patent)Karl-Erwin PiejkoOtto Koch (1 patent)Karl-Erwin PiejkoWerner Struver (1 patent)Karl-Erwin PiejkoVolker Damrath (1 patent)Karl-Erwin PiejkoWerner Tischer (1 patent)Karl-Erwin PiejkoKurt P Meurer (1 patent)Karl-Erwin PiejkoKurt Weirauch (1 patent)Karl-Erwin PiejkoHans-Georg Gehrke (1 patent)Karl-Erwin PiejkoGeorg Heger (1 patent)Karl-Erwin PiejkoMichael Hullmann (1 patent)Karl-Erwin PiejkoHans-Jurgen Thiem (1 patent)Karl-Erwin PiejkoWilfried Kortmann, Deceased (1 patent)Karl-Erwin PiejkoHorst Beicher (1 patent)Karl-Erwin PiejkoHarry Staratschek (1 patent)Karl-Erwin PiejkoJutta Rottger (1 patent)Karl-Erwin PiejkoHans-Joachim Laue (1 patent)Karl-Erwin PiejkoErnst Orthmann (1 patent)Karl-Erwin PiejkoEkkehard Frohberg (1 patent)Karl-Erwin PiejkoKlaus Summermann (1 patent)Karl-Erwin PiejkoKlaus Struss (1 patent)Karl-Erwin PiejkoVenkatarayaloo Janarthanan (1 patent)Karl-Erwin PiejkoRalf Kr Uger (1 patent)Karl-Erwin PiejkoGeorg Frank (1 patent)Karl-Erwin PiejkoRolf-Peter Muller (1 patent)Karl-Erwin PiejkoSara D Graham (1 patent)Karl-Erwin PiejkoWerner Nouverte (1 patent)Karl-Erwin PiejkoBruno Boemer (1 patent)Karl-Erwin PiejkoRoland P Brassard (1 patent)Karl-Erwin PiejkoHans Wunderlich (1 patent)Karl-Erwin PiejkoFritz Schmidt (1 patent)Karl-Erwin PiejkoHans-Jurgen Bunte (1 patent)Karl-Erwin PiejkoJurgen Ramthun (1 patent)Karl-Erwin PiejkoKarl-Erwin Piejko (72 patents)Christian LindnerChristian Lindner (164 patents)Herbert EichenauerHerbert Eichenauer (125 patents)Hans-Eberhard BraeseHans-Eberhard Braese (34 patents)Holger LutjensHolger Lutjens (18 patents)Karl-Heinz OttKarl-Heinz Ott (141 patents)Edgar LeitzEdgar Leitz (40 patents)Uwe WesteppeUwe Westeppe (44 patents)Bruno BomerBruno Bomer (36 patents)Gerd FenglerGerd Fengler (22 patents)Ralph OstarekRalph Ostarek (7 patents)Jurgen KirschJurgen Kirsch (31 patents)Ralf KrugerRalf Kruger (14 patents)Dieter ArltDieter Arlt (128 patents)Dieter WittmannDieter Wittmann (123 patents)Rolf GrosserRolf Grosser (44 patents)Torsten GrothTorsten Groth (39 patents)Adolf SchmidtAdolf Schmidt (38 patents)Leo MorbitzerLeo Morbitzer (30 patents)Gerhard LangsteinGerhard Langstein (17 patents)Josef KasbauerJosef Kasbauer (15 patents)Otto BillingerOtto Billinger (7 patents)Ulrich SchwartzUlrich Schwartz (4 patents)Ulrich R GrigoUlrich R Grigo (69 patents)Claus H WulffClaus H Wulff (49 patents)Ulrich JansenUlrich Jansen (21 patents)Ulrich EiseleUlrich Eisele (16 patents)Rolf KubensRolf Kubens (15 patents)Lothar MeierLothar Meier (9 patents)Bernd-Michael KonigBernd-Michael Konig (7 patents)Manfred T ReetzManfred T Reetz (5 patents)Alfred JungAlfred Jung (5 patents)Rudiger PlaetschkeRudiger Plaetschke (4 patents)Peter KrugerPeter Kruger (3 patents)Gerd F RennerGerd F Renner (3 patents)Dieter ConstantDieter Constant (3 patents)Dieter WittmanDieter Wittman (2 patents)Albrecht MarholdAlbrecht Marhold (245 patents)Hans-Josef BuyschHans-Josef Buysch (194 patents)Wolfgang PodszunWolfgang Podszun (117 patents)Heinrich AlbertsHeinrich Alberts (82 patents)Burkhard KohlerBurkhard Kohler (75 patents)Herman J UytterhoevenHerman J Uytterhoeven (64 patents)Karsten-Josef IdelKarsten-Josef Idel (58 patents)Hans-Jurgen KressHans-Jurgen Kress (55 patents)Werner NouvertneWerner Nouvertne (51 patents)Volker SeriniVolker Serini (47 patents)Winfried JoentgenWinfried Joentgen (47 patents)Alfred PischtschanAlfred Pischtschan (45 patents)Ralf DujardinRalf Dujardin (44 patents)Herbert BartlHerbert Bartl (41 patents)Bernd AligBernd Alig (41 patents)Siegfried KorteSiegfried Korte (35 patents)Jochen SchoepsJochen Schoeps (34 patents)Michael NegeleMichael Negele (31 patents)Josef MertenJosef Merten (28 patents)Frank WinglerFrank Wingler (25 patents)Josef BuekersJosef Buekers (24 patents)Klaus D BergKlaus D Berg (20 patents)Robert Horst BloodworthRobert Horst Bloodworth (18 patents)Otto KochOtto Koch (13 patents)Werner StruverWerner Struver (11 patents)Volker DamrathVolker Damrath (10 patents)Werner TischerWerner Tischer (10 patents)Kurt P MeurerKurt P Meurer (9 patents)Kurt WeirauchKurt Weirauch (6 patents)Hans-Georg GehrkeHans-Georg Gehrke (6 patents)Georg HegerGeorg Heger (6 patents)Michael HullmannMichael Hullmann (6 patents)Hans-Jurgen ThiemHans-Jurgen Thiem (5 patents)Wilfried Kortmann, DeceasedWilfried Kortmann, Deceased (4 patents)Horst BeicherHorst Beicher (4 patents)Harry StaratschekHarry Staratschek (4 patents)Jutta RottgerJutta Rottger (4 patents)Hans-Joachim LaueHans-Joachim Laue (3 patents)Ernst OrthmannErnst Orthmann (3 patents)Ekkehard FrohbergEkkehard Frohberg (3 patents)Klaus SummermannKlaus Summermann (3 patents)Klaus StrussKlaus Struss (3 patents)Venkatarayaloo JanarthananVenkatarayaloo Janarthanan (2 patents)Ralf Kr UgerRalf Kr Uger (2 patents)Georg FrankGeorg Frank (2 patents)Rolf-Peter MullerRolf-Peter Muller (1 patent)Sara D GrahamSara D Graham (1 patent)Werner NouverteWerner Nouverte (1 patent)Bruno BoemerBruno Boemer (1 patent)Roland P BrassardRoland P Brassard (1 patent)Hans WunderlichHans Wunderlich (1 patent)Fritz SchmidtFritz Schmidt (1 patent)Hans-Jurgen BunteHans-Jurgen Bunte (1 patent)Jurgen RamthunJurgen Ramthun (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bayer Aktiengesellschaft (67 from 12,142 patents)

2. Other (2 from 831,952 patents)

3. Bayer Corporation (1 from 1,008 patents)

4. Miles Inc. (1 from 539 patents)

5. Agfa-gevaert Aktiengsellschaft (1 from 1 patent)


72 patents:

1. 6503628 - Thermoplastic polycarbonate molding composition containing a rubber free copolymer and a combination of graft polymers

2. 5981644 - Method of producing ABS moulding compositions

3. 5804656 - Compositions of the ABS type for processing by extrusion and deep drawing

4. 5773630 - Process for the preparation of N-substituted cyclic imides

5. 5741853 - ABS moulding compositions with improved properties

6. 5726265 - Thermoplastics having a high heat deflection temperature and improved

7. 5714541 - Thermoplastics having a high heat deflection temperature and improved

8. 5708079 - Thermoplastic ABS moulding compositions

9. 5696204 - Thermoplastic moulding compositions of the ABS type

10. 5674940 - ABS molding compounds with improved toughness

11. 5674939 - ABS moulding compounds with novel morphology

12. 5605963 - ABS polymer compositions having a uniform matt surface

13. 5599862 - Graft polymers with improved surface gloss

14. 5587424 - Mixture of fluorocarbon rubber and silicone/acrylate core/shell rubber

15. 5486583 - Defoaming compositions for ABS latices

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