Inventor · disambiguated record

Hubert Kalkman

Also filed as: KALKMAN HUBERT

1 granted patent·1 pending application·0 citations·filing 2005–2012

6Inventor score

Technology areasH04R

Files withKALKMAN HUBERT1 PUTT & PARTNERS B V V D1

Top patents by PatentIndex Score

2 records

0119US2011007923A1Loudspeaker cabinet and reproduction systemPUTT & PARTNERS B V V D·Filed 2005·Application pending·0 cites
0218US9319774B2Loudspeaker unit with two loudspeakers and a wedge-shaped body between the spaces adjoining the loudspeakersKALKMAN HUBERT·Filed 2012·Granted Apr 19, 2016·0 cites·18 claims

Join the waitlist — get patent alerts

Get an alert when Hubert Kalkman files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →