Inventor

John David Ehrsam

Inventor

Prairie Village, KS, US

Overview

5→

Patents

2006–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Wprimary

H04WWireless communication networks27%

F04DNon-positive-displacement pumps18%

B29CShaping or joining of plastics9%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts9%

B29LIndexing scheme associated with subclass b29c, relating to particular articles9%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants9%

H02KDynamo-electric machines9%

H04LTransmission of digital information, e.g. telegraphic communication9%

PatentTitleYear

10,931,161Pump motor with component mount support plate2021 10,907,644Pump impeller, method of producing pump impeller, and pump with the pump impeller2021 7,787,879'Method and system with user identifiers that indicate session type'2010 7,454,206'Method and system with user identifiers that indicate session type'2008 7,020,098'Predictive reservation of a communication link for a packet-based real-time media session'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2010Patents assigned to SPRINT SPECTRUM LP (2)· patent assignee history

2006–2010Based in Prairie Village, KS, US· patent location history

2008Patents assigned to SPRINT COMMUNICATIONS CO (1)· patent assignee history

2021Patents assigned to BUHLER MOTOR GMBH (2)· patent assignee history

2021Based in Furth, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BUHLER MOTOR GMBH	2	2021
SPRINT SPECTRUM LP	2	2006–2010
SPRINT COMMUNICATIONS CO	1	2008

Locations

Location	Patents	Span
Prairie Village, KS, US	3	2006–2010
Furth, DE	2	2021