Inventor
FISHER JR RICHARD K
US21 patents
⚠️ This page may combine multiple inventors who share the name “FISHER JR RICHARD K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VOITH HYDRO INC
14 patentsUS5879130AMar 9, 1999
Aeration through runner
VOITH HYDRO INC44 citations95
US5954474ASep 21, 1999
Hydro-turbine runner
VOITH HYDRO INC58 citations94
US5947679ASep 7, 1999
Adjustable blade turbines
VOITH HYDRO INC41 citations94
US5924842AJul 20, 1999
Hydraulic turbine for enhancing the level of dissolved gas in water
VOITH HYDRO INC35 citations94
US5864183AJan 26, 1999
Method and apparatus for optimizing performance of a pump-turbine
VOITH HYDRO INC59 citations94
US5823740AOct 20, 1998
Dissolved gas augmentation with mixing chambers
VOITH HYDRO INC51 citations94
US5896657AApr 27, 1999
Method of making a turbine blade
VOITH HYDRO INC23 citations92
US4780051AOct 25, 1988
Hydraulic turbine aeration apparatus
VOITH HYDRO INC49 citations92
US6533536B1Mar 18, 2003
Hydro-turbine runner
VOITH HYDRO INC19 citations91
US6095749AAug 1, 2000
Hydraulic turbine for enhancing the level of dissolved gas in water
VOITH HYDRO INC17 citations91
US5754446AMay 19, 1998
Method and apparatus for optimizing performance of a kaplan turbine
VOITH HYDRO INC49 citations91
US6038494AMar 14, 2000
Control system for enhancing fish survivability in a hydroelectric power generation installation
VOITH HYDRO INC21 citations90
US5924844AJul 20, 1999
Dissolved gas augmentation with mixing chambers
VOITH HYDRO INC26 citations90
US5941682AAug 24, 1999
Draft tube peripheral plenum
VOITH HYDRO INC26 citations88
VOITH SIEMENS HYDRO POWER
5 patentsUS6247893B1Jun 19, 2001
Hydraulic turbine for enhancing the level of dissolved gas in water
VOITH SIEMENS HYDRO POWER29 citations92
US6524063B1Feb 25, 2003
Hydraulic turbine for enhancing the level of dissolved gas in water
VOITH SIEMENS HYDRO POWER38 citations91
US6402477B1Jun 11, 2002
Adjustable blade turbines
VOITH SIEMENS HYDRO POWER19 citations90
US6254339B1Jul 3, 2001
Hydro-turbine runner
VOITH SIEMENS HYDRO POWER12 citations72
US6164907ADec 26, 2000
Adjustable blade turbines
VOITH SIEMENS HYDRO POWER6 citations71