Individual holder
ZIEHM RAYMOND G
US·3 granted patents·2 pending applications·107 citations·filing 1993–2017
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0191US5331996ADual mode hot water circulation apparatusZIEHM RAYMOND G·Filed 1993·Granted Jul 26, 1994·94 cites·5 claims
- 0289US9964315B1Water conservation via convective circulationZIEHM RAYMOND G·Filed 2017·Granted May 8, 2018·5 cites·6 claims
- 0380US8534310B1Hot water circulation systemZIEHM RAYMOND G·Filed 2012·Granted Sep 17, 2013·8 cites·8 claims
- 0460US2010092164A1Tankless heater instant hot waterZIEHM RAYMOND G·Filed 2009·Application pending·0 cites
- 0552US2010263604A1Water heater with passive automatic hot water circulation through a home or buildingZIEHM RAYMOND G·Filed 2010·Application pending·0 cites
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