Growing community of inventors

Cologne, Germany

Ingeborg Hammann

Average Co-Inventor Count = 3.96

ph-index = 15

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 = 1,044

Ingeborg HammannBernhard Homeyer (119 patents)Ingeborg HammannWilhelm Stendel (93 patents)Ingeborg HammannWolfgang Behrenz (91 patents)Ingeborg HammannFritz Maurer (71 patents)Ingeborg HammannHans-Jochem Riebel (48 patents)Ingeborg HammannErich Klauke (33 patents)Ingeborg HammannHellmut Hoffmann (32 patents)Ingeborg HammannRainer A Fuchs (29 patents)Ingeborg HammannRolf Schroder (24 patents)Ingeborg HammannWilhelm Sirrenberg (24 patents)Ingeborg HammannEngelbert Kuhle (18 patents)Ingeborg HammannWolfgang Hofer (15 patents)Ingeborg HammannAlbrecht Marhold (11 patents)Ingeborg HammannReinhard Lantzsch (11 patents)Ingeborg HammannPeter Siegle (10 patents)Ingeborg HammannKlaus Naumann (9 patents)Ingeborg HammannAlfons Hartmann (9 patents)Ingeborg HammannWilhelm Brandes (8 patents)Ingeborg HammannJurgen Schramm (7 patents)Ingeborg HammannDieter Arlt (6 patents)Ingeborg HammannJorg Stetter (6 patents)Ingeborg HammannLothar Rohe (6 patents)Ingeborg HammannIngomar Krehan (6 patents)Ingeborg HammannGerhard Heywang (5 patents)Ingeborg HammannWalter Lorenz (5 patents)Ingeborg HammannGunter Unterstenhofer (5 patents)Ingeborg HammannHermann Hagemann (4 patents)Ingeborg HammannHans Scheinpflug (4 patents)Ingeborg HammannPaul-Ernst Frohberger (3 patents)Ingeborg HammannBernd-Wieland Kruger (3 patents)Ingeborg HammannBenedikt Becker (3 patents)Ingeborg HammannKlaus Sasse (3 patents)Ingeborg HammannChrista Fest (3 patents)Ingeborg HammannPeter Roessler (3 patents)Ingeborg HammannClaus Stolzer (3 patents)Ingeborg HammannKarl-Julius Schmidt (3 patents)Ingeborg HammannRobert R Schmidt (2 patents)Ingeborg HammannKarl H Buchel (2 patents)Ingeborg HammannKurt Findeisen (2 patents)Ingeborg HammannLudwig Eue (2 patents)Ingeborg HammannHans-Ludwig Elbe (2 patents)Ingeborg HammannGunther Beck (2 patents)Ingeborg HammannHelmut Kaspers (2 patents)Ingeborg HammannVolker Paul (2 patents)Ingeborg HammannRainer Hamprecht (2 patents)Ingeborg HammannRudolf Fauss (2 patents)Ingeborg HammannHelmut Heitzer (2 patents)Ingeborg HammannEdgar Enders (2 patents)Ingeborg HammannPaul Uhrhan (2 patents)Ingeborg HammannPeter Kraus (2 patents)Ingeborg HammannGerhard Buttner (2 patents)Ingeborg HammannJohannes Schmetzer (2 patents)Ingeborg HammannWalter Lorenz, Deceased (2 patents)Ingeborg HammannWolfgang Kramer (1 patent)Ingeborg HammannPaul Reinecke (1 patent)Ingeborg HammannKarlfried Wedemeyer (1 patent)Ingeborg HammannHeinz Forster (1 patent)Ingeborg HammannWilfried Draber (1 patent)Ingeborg HammannGerhard Jager (1 patent)Ingeborg HammannHans-Joachim Scholl (1 patent)Ingeborg HammannArno Widdig (1 patent)Ingeborg HammannHorst Boshagen (1 patent)Ingeborg HammannHerbert Thomas (1 patent)Ingeborg HammannWerner Daum (1 patent)Ingeborg HammannReimer Colln (1 patent)Ingeborg HammannRudolf Gompper (1 patent)Ingeborg HammannFerdinand Grewe (1 patent)Ingeborg HammannDetlef Grotkopp (1 patent)Ingeborg HammannHans-Ulrich Alles (1 patent)Ingeborg HammannHeinz Kolbl (1 patent)Ingeborg HammannGunther Hermann (1 patent)Ingeborg HammannBerhard Homeyer (1 patent)Ingeborg HammannJ/o/ Rg Stetter (1 patent)Ingeborg HammannGerd Haenssler (1 patent)Ingeborg HammannHellmut Hoffman (1 patent)Ingeborg HammannReiner A Fuchs (1 patent)Ingeborg HammannPeter Siegel (1 patent)Ingeborg HammannAlbrecht Harhold (1 patent)Ingeborg HammannWilhelm St-Noel (1 patent)Ingeborg HammannBernd-Wieland Kr/u/ Ger (1 patent)Ingeborg HammannHans-Joachem Riebel (1 patent)Ingeborg HammannLother Rohe (1 patent)Ingeborg HammannWihelm Stendel (1 patent)Ingeborg HammannGerhard Zumach (1 patent)Ingeborg HammannIngeborg Hammann (234 patents)Bernhard HomeyerBernhard Homeyer (176 patents)Wilhelm StendelWilhelm Stendel (201 patents)Wolfgang BehrenzWolfgang Behrenz (147 patents)Fritz MaurerFritz Maurer (155 patents)Hans-Jochem RiebelHans-Jochem Riebel (195 patents)Erich KlaukeErich Klauke (154 patents)Hellmut HoffmannHellmut Hoffmann (48 patents)Rainer A FuchsRainer A Fuchs (64 patents)Rolf SchroderRolf Schroder (41 patents)Wilhelm SirrenbergWilhelm Sirrenberg (41 patents)Engelbert KuhleEngelbert Kuhle (79 patents)Wolfgang HoferWolfgang Hofer (29 patents)Albrecht MarholdAlbrecht Marhold (245 patents)Reinhard LantzschReinhard Lantzsch (146 patents)Peter SieglePeter Siegle (15 patents)Klaus NaumannKlaus Naumann (33 patents)Alfons HartmannAlfons Hartmann (9 patents)Wilhelm BrandesWilhelm Brandes (410 patents)Jurgen SchrammJurgen Schramm (19 patents)Dieter ArltDieter Arlt (128 patents)Jorg StetterJorg Stetter (98 patents)Lothar RoheLothar Rohe (36 patents)Ingomar KrehanIngomar Krehan (9 patents)Gerhard HeywangGerhard Heywang (19 patents)Walter LorenzWalter Lorenz (5 patents)Gunter UnterstenhoferGunter Unterstenhofer (5 patents)Hermann HagemannHermann Hagemann (92 patents)Hans ScheinpflugHans Scheinpflug (79 patents)Paul-Ernst FrohbergerPaul-Ernst Frohberger (126 patents)Bernd-Wieland KrugerBernd-Wieland Kruger (74 patents)Benedikt BeckerBenedikt Becker (68 patents)Klaus SasseKlaus Sasse (64 patents)Christa FestChrista Fest (50 patents)Peter RoesslerPeter Roessler (21 patents)Claus StolzerClaus Stolzer (8 patents)Karl-Julius SchmidtKarl-Julius Schmidt (4 patents)Robert R SchmidtRobert R Schmidt (361 patents)Karl H BuchelKarl H Buchel (236 patents)Kurt FindeisenKurt Findeisen (152 patents)Ludwig EueLudwig Eue (140 patents)Hans-Ludwig ElbeHans-Ludwig Elbe (135 patents)Gunther BeckGunther Beck (61 patents)Helmut KaspersHelmut Kaspers (30 patents)Volker PaulVolker Paul (28 patents)Rainer HamprechtRainer Hamprecht (26 patents)Rudolf FaussRudolf Fauss (22 patents)Helmut HeitzerHelmut Heitzer (19 patents)Edgar EndersEdgar Enders (16 patents)Paul UhrhanPaul Uhrhan (15 patents)Peter KrausPeter Kraus (15 patents)Gerhard ButtnerGerhard Buttner (12 patents)Johannes SchmetzerJohannes Schmetzer (4 patents)Walter Lorenz, DeceasedWalter Lorenz, Deceased (2 patents)Wolfgang KramerWolfgang Kramer (185 patents)Paul ReineckePaul Reinecke (154 patents)Karlfried WedemeyerKarlfried Wedemeyer (65 patents)Heinz ForsterHeinz Forster (59 patents)Wilfried DraberWilfried Draber (48 patents)Gerhard JagerGerhard Jager (45 patents)Hans-Joachim SchollHans-Joachim Scholl (42 patents)Arno WiddigArno Widdig (42 patents)Horst BoshagenHorst Boshagen (41 patents)Herbert ThomasHerbert Thomas (28 patents)Werner DaumWerner Daum (26 patents)Reimer CollnReimer Colln (6 patents)Rudolf GompperRudolf Gompper (5 patents)Ferdinand GreweFerdinand Grewe (5 patents)Detlef GrotkoppDetlef Grotkopp (4 patents)Hans-Ulrich AllesHans-Ulrich Alles (3 patents)Heinz KolblHeinz Kolbl (3 patents)Gunther HermannGunther Hermann (3 patents)Berhard HomeyerBerhard Homeyer (2 patents)J/o/ Rg StetterJ/o/ Rg Stetter (2 patents)Gerd HaensslerGerd Haenssler (2 patents)Hellmut HoffmanHellmut Hoffman (1 patent)Reiner A FuchsReiner A Fuchs (1 patent)Peter SiegelPeter Siegel (1 patent)Albrecht HarholdAlbrecht Harhold (1 patent)Wilhelm St-NoelWilhelm St-Noel (1 patent)Bernd-Wieland Kr/u/ GerBernd-Wieland Kr/u/ Ger (1 patent)Hans-Joachem RiebelHans-Joachem Riebel (1 patent)Lother RoheLother Rohe (1 patent)Wihelm StendelWihelm Stendel (1 patent)Gerhard ZumachGerhard Zumach (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bayer Aktiengesellschaft (233 from 12,142 patents)

2. Bayer Aktiengesellchaft (1 from 2 patents)


234 patents:

1. 4711905 - 2,4-dihalogenobenzoyl-(thio)urea insecticides

2. 4698333 - Use of substituted malonic acid derivatives as agents for combating pests

3. 4647581 - Bicyclic pesticidal agents

4. 4612305 - Combating pests with oxo-quinazoline-(thiono)-phosphoric(phosphonic)

5. 4611009 - Combating arthropods with 3-phenoxybenzyl

6. 4611003 - N-substituted benzoyl-N'-3,4-tetrafluoroethylenedioxy-urea pesticides

7. 4602033 - Combating pests with aryl N-oxalyl-N-methylcarbamates

8. 4599349 - Carbamoylated azolylalkyl-phenoxy-carbinols and their use as

9. 4596880 - Combating arthropods with novel benzyl esters

10. 4581375 - Pesticidal novel substituted hydroxymalonic acid amide-thioamides

11. 4567168 - Cyanohydrin phosphonates as pesticides

12. 4548931 - Thiophosphonic acid ester pesticides

13. 4536587 - Combating pests with substituted benzoyl-(thio)ureas

14. 4533676 - 2,5-Dihalogenobenzoyl-(thio)urea insecticides

15. 4529557 - Combating pests with novel substituted phenylcyclopropanecarboxylic acid

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as of
9/10/2025
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