Individual holder
HAENTJENS WALTER D
US·10 granted patents·283 citations·filing 1975–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
10 records- 0193US4171852APropulsion of slurry along a pipeline by ultrasonic sound wavesHAENTJENS WALTER D·Filed 1977·Granted Oct 23, 1979·47 cites·6 claims
- 0289US4700808AShaft mounted bearing lubricating deviceHAENTJENS WALTER D·Filed 1986·Granted Oct 20, 1987·53 cites·17 claims
- 0375US5051071AHeat dissipating coupling for rotary shaftsHAENTJENS WALTER D·Filed 1990·Granted Sep 24, 1991·41 cites·7 claims
- 0474US4037980APump couplingHAENTJENS WALTER D·Filed 1975·Granted Jul 26, 1977·30 cites·6 claims
- 0572US4655684ACentrifugal pump for wide range of operating conditionsHAENTJENS WALTER D·Filed 1984·Granted Apr 7, 1987·29 cites·13 claims
- 0662US5141390AVertical axis centilevered pump provided with a stabilizing by-pass flowHAENTJENS WALTER D·Filed 1990·Granted Aug 25, 1992·26 cites·10 claims
- 0762US4747757ASubmersible mixing pumpHAENTJENS WALTER D·Filed 1986·Granted May 31, 1988·22 cites·12 claims
- 0856US4854828ARemotely removable and replaceable motor for hazardous service pump installationHAENTJENS WALTER D·Filed 1986·Granted Aug 8, 1989·19 cites·10 claims
- 0953US4224008AVolute slurry pump and throttle bushing thereforHAENTJENS WALTER D·Filed 1978·Granted Sep 23, 1980·14 cites·11 claims
- 1029US3966262ASump and pump construction for conveying solids in the form of a slurryHAENTJENS WALTER D·Filed 1975·Granted Jun 29, 1976·2 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when HAENTJENS WALTER D files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →