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Walter Fields — 5 Patents

St. Louis Park, MN: #157 of 602 inventorsTop 30%
Minnesota: #13,707 of 52,454 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Walter Fields has been granted 5 US patents. The first was granted in 1992 and the most recent in July 2018. Walter Fields ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Walter Fields in St. Louis Park, MN, US.

Patents per Year

Patents granted per year, 1992 to 2018Bar chart with a peak of 2 patents in 1992.peak 21992: 2 patents19921996: 1 patents19962016: 1 patents20162018: 1 patents2018

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10024971 Apparatus, system and method for locating a lost instrument or object Donald Michael Shields 2018-07-17
9304206 Apparatus, system and method for locating a lost instrument or object Donald Michael Shields 2016-04-05
5525767 High-performance sound imaging system — 1996-06-11
5148774 Litter bag frame — 1992-09-22
5140876 Variable-fulcrum pliers — 1992-08-25

Frequent Collaborators

Donald Michael Shields2 shared

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