Declension table of ?vajrapatana

Neuter	Singular	Dual	Plural
Nominative	vajrapatanam	vajrapatane	vajrapatanāni
Vocative	vajrapatana	vajrapatane	vajrapatanāni
Accusative	vajrapatanam	vajrapatane	vajrapatanāni
Instrumental	vajrapatanena	vajrapatanābhyām	vajrapatanaiḥ
Dative	vajrapatanāya	vajrapatanābhyām	vajrapatanebhyaḥ
Ablative	vajrapatanāt	vajrapatanābhyām	vajrapatanebhyaḥ
Genitive	vajrapatanasya	vajrapatanayoḥ	vajrapatanānām
Locative	vajrapatane	vajrapatanayoḥ	vajrapataneṣu

Compound vajrapatana -

Adverb -vajrapatanam -vajrapatanāt