Growing community of inventors

Vallingby, Sweden

Birger T Hjertman

Average Co-Inventor Count = 2.60

ph-index = 10

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 = 349

Birger T HjertmanRudolf Cseke (5 patents)Birger T HjertmanHans O Himbert (3 patents)Birger T HjertmanEbba Florin-Robertsson (3 patents)Birger T HjertmanAnders Strom (3 patents)Birger T HjertmanBo Ahlstrand (3 patents)Birger T HjertmanBohdan Pavlu (2 patents)Birger T HjertmanRainer Bosse (2 patents)Birger T HjertmanGuido Hertig (2 patents)Birger T HjertmanMagnus Westermark (2 patents)Birger T HjertmanStanley Sommarlund (2 patents)Birger T HjertmanPercy E Bennwik (2 patents)Birger T HjertmanGunnar Pettersson (2 patents)Birger T HjertmanDaniel Felder (2 patents)Birger T HjertmanPercy Bennwik (1 patent)Birger T HjertmanBirger T Hjertman (13 patents)Rudolf CsekeRudolf Cseke (12 patents)Hans O HimbertHans O Himbert (64 patents)Ebba Florin-RobertssonEbba Florin-Robertsson (11 patents)Anders StromAnders Strom (6 patents)Bo AhlstrandBo Ahlstrand (4 patents)Bohdan PavluBohdan Pavlu (16 patents)Rainer BosseRainer Bosse (6 patents)Guido HertigGuido Hertig (6 patents)Magnus WestermarkMagnus Westermark (5 patents)Stanley SommarlundStanley Sommarlund (3 patents)Percy E BennwikPercy E Bennwik (2 patents)Gunnar PetterssonGunnar Pettersson (2 patents)Daniel FelderDaniel Felder (2 patents)Percy BennwikPercy Bennwik (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pharmacia & Upjohn Ab (5 from 76 patents)

2. Kabivitrum Ab (4 from 29 patents)

3. Pharmacia Ab (1 from 184 patents)

4. Kabi Pharmacia Ab (1 from 27 patents)

5. International Nutritional Research Institute Ab (1 from 2 patents)

6. Vitrum Ab (1 from 2 patents)


13 patents:

1. D486908 - Snap-on grip for an injector

2. D434497 - Cartridge for pharmaceutical preparations

3. D430666 - Cartridge for pharmaceutical preparations

4. D429812 - Disposable syringe

5. D401324 - Syringe

6. D401325 - Syringe

7. 5232459 - Multi-dose syringe

8. D324423 - Combined medical syringe and vial for administering subcutaneous

9. D323030 - Medical syringe for administering subcutaneous injections

10. D323031 - Medical syringe for administering subcutaneous injections

11. 4592743 - Apparatus for mixing liquids

12. 4567999 - Self-adhesive connecting device

13. 4411358 - Package

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as of
1/10/2026
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