Watercraft catalytic exhaust system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 20, 2003
Issued Date -
N/A
app pub date -
Mar 8, 2002
filing date -
Feb 27, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A number of embodiments of personal watercraft having catalytic exhaust systems for treating and purifying the exhaust gases. In all of the embodiments, the catalyst is positioned and disposed so as to be protected from water. In addition, arrangements are provided for cooling the catalyst, for circulating ventilating air across it, for isolating it from other components such as the fuel tank, and for permitting its flushing with fresh water after operating in a salt water environment.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SANSHIN KOGYO KABUSHIKI KAISHA | 1400 NIPPASHI-CHO HAMAMATSU-SHI A CORP OF JAPAN SHIZUOKA-KEN |
International Classification(s)

- 2002 Application Filing Year
- B63H Class
- 373 Applications Filed
- 144 Patents Issued To-Date
- 38.61 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fujimoto, Hiroaki | Hamamatsu, JP | 151 | 1919 |
# of filed Patents : 151 Total Citations : 1919 | |||
Nakase, Ryoichi | Hamamatsu, JP | 63 | 928 |
# of filed Patents : 63 Total Citations : 928 | |||
Ozawa, Shigeyuki | Hamamatsu, JP | 66 | 608 |
# of filed Patents : 66 Total Citations : 608 |
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Patent Citation Ranking
- 3 Citation Count
- B63H Class
- 6.38 % this patent is cited more than
- 22 Age
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- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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